Draw a circuit diagram for a circuit in which two resistors A and B are joined in series with a battery, and a voltmeter is connected to measure the potential difference across the resistor A.

How is a voltmeter connected in the circuit to measure the potential difference between two points?

400 J of heat is produced in 4 s in a 4.0ohm resistor. Find the potential difference across the resistor.

Two identical p-n juctions may be connected in series with a battery in three ways.the potential difference across the two p-n junction are equal in

100 J of heat is producec! in each second in a 4 Omega resistance. Find the potential difference across the resistor.

A current of 200 mA flows through a 4 kOhm resistor. What is the potential difference across the resistor?

If power dissipated in the 9 Omega resistor in the resistor shown is 36 W , the potential difference across the 2 Omega resistor is

Two resistors of 1 k Omega and 200 Omega are connected in series with a 12V battery. Calculate the current flowing in the circuit and the voltage developed across the 200 Omega resistor.

Draw a diagram of an electric circuit containing a cell, a key, an ammeter, a resistor of 2Omega in series with a combination of two resistor ( 4Omega each) in parallel and a voltmeter across the parallel combination. Will the potential defference across the 2 Omega resistor be the same as that across the parallel combination of 4 Omega resistors ?Give the reason.

In the circuit shown in Fig. 4.41, calculate the current in each resistor and potential difference across each resistor.