Question
The earth-wire of a cable is connected to –
Solution
Earth wire prevents Electric shocks. It is connected to the electrical cable of an appliance to prevent electric shocks. Actually, it has very low resistance and allows current to pass through it easily.
Two bodies of masses 3 kg and 5 kg are connected by a string and placed on a smooth horizontal surface. A force of 40 N is applied on the 5 kg block. Wh...
The group velocity of matter waves associated with a moving particle is:
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Which of the following is an example of longitudinal waves in a gas medium?
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Specific resistance of a conductor increases with :
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