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BINA LIBRARY-CURRENT ELECTRICITY-EXERCISE
- Give two example of periodic motion.
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- What is the principle of a meter bridge.
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- State the principle of working of a potentiometer.
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- If the length of a wire is doubled and cross-sectional area is halved,...
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- Two ends of a conducting wire of non-uniform cross-section are connect...
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- The magnitude of drift velocity of free electrons in a conductor is ve...
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- Why are the car lights dimmed when the starter is operated?
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- Why is it easier to start a car engine on a warm day than on a chilly ...
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- What is rolling friction ?
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- When is Wheatstone bridge most sensitive ?
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- Why do we prefer a potentiometer with longer wire?
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- Why do we prefer a potentiometer with longer wire?
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- Why should the balance point be obtained in the middle of the wire of ...
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- Define friction.
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- A potential difference of 5 V is applied across a conductor of length ...
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- Specific resistance of the material of a wire is 44 x 10^6 Omega cm....
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- A cylindircal metallic wire is stretched to increse its length by 5%. ...
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- A cell of emf 4V and internal resistance 0.5 is connected across a loa...
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- A battery gives a current of 0.5A with an external resistor of 12 Omeg...
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- battery gives a current of 0.5A with an external resistor of 12 Omega ...
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