Neha Jindal Solutions for Chapter: Electricity, Exercise 1: Progress Check 1

Graphically represent the $\mathrm{V}-\mathrm{I}$ characteristics/relation of a nichrome wire.

What do you mean by a resistor?

A $4 \mathrm{\Omega }$ resistance wire is doubled on it. Find its new resistance.

A $4 \mathrm{\Omega }$ resistance wire is doubled on it. What will be the resistivity of the wire in this case, if original resistivity was $\rho$?

A heater draws $5 \mathrm{A}$ current from the source. How much current will it draw if potential difference across its ends is doubled?

Calculate equivalent resistance in the following case:

Calculate equivalent resistance in the following case:

Find the voltmeter reading and ammeter reading in each of the following cases.

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