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Find odd man out voltmeter ammeter galvanometer thermometer

The questions posted on the site are solely user generated, Doubtnut has no ownership or control over the nature and content of those questions. Doubtnut is not responsible for any discrepancies concerning the duplicity of content over those questions. Study Materials. Crash Course. Question : Volmeter,a meter,galvanometer, thermometer tell the odd one out give proper explanation.

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Tell the odd one one out. give proper explanation. voltmeter, ammeter, galvanometer, thermometer.

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Embeds 0 No embeds. No notes for slide. Magnetism 1. All about Electromagnetism Q1. A Choose the correct alternative and rewrite the following.

Voltmeter 2. Ammeter 3. Galvanometer 4. Increases 2. Decreases 3. Remains the same 4. Right hand thumb rule 2. None of these. B Say true or false. If false, write the correct sentence. False:- Magnetic field decreases as we go away from a magnet. False:- Magnetic lines of force never cross each other. True 3.

C Find the odd one out. Bar Magnet: - It is a magnet while the rest are devices working on electromagnetism. Direct current: - The rest are parts of a generator.

Generator: - The rest are safety measures in using electricity. Thermometer: - The rest are dives working on electromagnetism.

Stretch the thumb, forefinger and middle finger of the right hand so that they are perpendicular to each other. If the forefinger indicates the direction of the magnetic field and the thumb shows the direction of the motion of conductor, then the middle finger will show the direction of induced current.

The induced current is found to be the maximum when the direction of motion of the coil is at right angles to the magnetic field. Stretch the forefinger, the central finger and the thumb of you left hand mutually perpendicular to each other. If the forefinger shows the direction of the field and the central finger shows the direction of the current, then the thumb will point towards the direction of the motion of the conductor.

Imagine that you are holding a current carrying straight conductor in your right hand such that the thumb points towards the direction current, then the curled fingers around the conductor will give the direction of the magnetic field.

This is known as right hand thumb rule. Distinguish between electric motor and electric generator. Electric motor Electric generator 1.

Electric motor converts 1. Electric generator electrical energy into converts mechanical mechanical energy. It uses electricity. It is based on the 2. It generates electricity. It is based on the carrying conductor principle of placed in a magnetic electromagnetic field experiences a force.

State the characteristics of magnetic lines of force. The path along which the unit north pole moves in a magnetic field is called magnetic lines of force or magnetic field lines. The characteristics of magnetic lines of force are: Magnetic lines of force are closed continuous curves.

They start from North Pole and ends on South Pole. The tangent at any point on the magnetic lines of force gives the direction of the magnetic field at that point. No two magnetic lines of force can intersect each other. Magnetic lines of force are crowded where the magnetic field is strong and far from each other where the field is weak. Give scientific reasons. C, Oven, washing-machine, etc. Hence, we should not use many electrical appliances simultaneously. Nipermag is an alloy of iron containing nickel, aluminium and titanium.

Therefore, a magnetic crane is used to load and transport scrap iron. Explain the construction, working and uses of Electric motor. A device which converts electrical energy into mechanical energy is called an electric motor. Principle: - Electric motor works on the principle that a current carrying conductor placed in a magnetic field experiences a force.

Construction: This provides a strong magnetic field. The ends of the armature coil are connected to these rings. Commutator reverses the direction of current in the armature coil. This force rotates the coil in clockwise direction until the coil is vertical. So the supply to the coil is cut off. Thus no force acts on the coil. It goes on rotating until the commutator again comes in contact with the brushes B1 and B2. Now the force acting on arm AB is downward and CD is upward. Again this force moves the coil in clockwise direction.

The coil of DC motor continues to rotate in the same direction. Electric generator. An electric device which converts mechanical energy into electric energy is called an electric generator. Principle: Electric generator works on the principle of electromagnetic induction. When the coil of electric generator rotates in a magnetic field, the magnetic field induces a current in this coil.

This induced current then flows into the circuit connected to the coil. Construction: The main components of AC generator are as shown in figure. Armature 2. Strong magnets 3. Slip rings and 4. Armature, strong magnets and brushes are the same as used for electric motors.

Slip rings: The two ends of the armature coil are connected to two brass slip rings R1 and R2.

Volmeter,a meter,galvanometer, thermometer tell the odd one out give proper explanation

In the electric equipment producing heat e. Two tungsten bulbs of wattage W and 60 W power work on V potential difference. If they are connected in parallel, how much current will flow in the main conductor? Who will spend more electrical energy? Heat energy is being produced in a resistance in a circuit at the rate of W.

Code , see. The present invention relates to'an A.

These solutions for Effects Of Electric Current are extremely popular among Class 10 students for Science Effects Of Electric Current Solutions come handy for quickly completing your homework and preparing for exams. Tell the odd one out. Give proper explanation. Fuse wire, bad conductor, rubber gloves, generator. Voltmeter, Ammeter, galvanometer, thermometer.

Advanced Physics

Solution : Thermometer. It measures temperature, the remaining three measure electrical quantities. Students to be promoted on the basis of internal assessment. CBSE has released syllabus for class 11 and 12 applied maths textbook CBSE board has released the syllabus as well as the complete handbook for the subject. Exam will be held from 30 July to 4 August. Share This Video. Apne doubts clear karein ab Whatsapp par bhi. Try it now. Ab clear karein apne doubts Whatsapp par bhi.

US2805394A - Alternating-current volt-ammeters - Google Patents

Nice post! This is a very nice that I will definitively come back to more times this year! Thanks for informative post. Science Curriculum.

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All about Electromagnetism. A Choose the correct alternative and rewrite the following. Remains the same.

Advanced Physics

Will the mass and weight of an object on the earth be same as their values on Mars? How did they help Newton to arrive at the inverse square law of gravity? Show that the time taken to go up is same as the time taken to come down. What is the value of g on the planet?

By using this site, you consent to the use of cookies. You can refuse to use cookies by setting the necessary parameters in your browser. English , Tell the odd one one out. Answers: 2.

Voltmeter , Ammeter, Galvanometer, Thermometer.

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the person(s) making the final electrical tests on the transformers. Transformer polarity relates to how winding leads are brought out to bushing terminals. Test voltages used to determine high-voltage power transformer ratios calculation the ammeter and voltmeter should have % accuracies or 4 1/2 digits with a.

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Comments: 1
  1. Zutilar

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