Question

व्हाट इज मेंट बाय सेइंग दैट द पोटेंशियल डिफरेंस बिटवीन टू पॉइंट इन वन वाल्ट​

Answer 1

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(a) Potential difference 1 volt means the amount of work done when a unit charge moves from one point to the other point in an electric field.

(b) First symbol is variable resistance and second is ammeter.

Variable resistance changes the magnitude of current in the circuit, by variation in resistance. Ammeter is used to find current.

If 1 J of work is required to move a charge of amount 1 C from one point to another, then it is said that the potential difference between the two points is 1 V.

I hope this will help you...