Calculate the potential difference across a `10 Omega` resistor carrying a current of 0.2 A

Calculate the potential difference across a 7 Omega resistor carrying a current of 0.2 A.

Calculate the potential difference across a 20 Omega resistor carrying a current of 0.1 A.

In given circuit diagram two resistors are connected to a 6V supply. A third resistor is now connected in a parallel with 6 Omega resistor will the potential difference across the 8 Omega resistor the larger, smaller or the same as before? Explain the reason for your answer.

Find the potential difference across each resistor in the following circuit.

A milliammeter gives full scale deflection when the potential difference across it is 5 volt and the current through it is 10 mA. How will you convert it into a voltmeter of range 0 to 100 volt?

Calculate the heat generated in joule in a coil when potential difference of 30 volts is applied across it. The current of 0.8 A is passed for 4 minutes.

Choose correct alternative. Two resistance of 3 Omega and 2 Omega are connected in series to a cell of emf 3 volt and internal resistance of 1 Omega . The potential difference across 3 Omega resistance will be A. 1 volt B. 0.5 volt C. 1.5 volt D. 2 volt

What must be the potential difference across individual appliances?

Choose correct alternative. When resistors are connected in parallel combination A. Potential difference across each resistor is same B. different current passes through unequal resistors C. equivalent resistance is equal to sum of the reciprocals of the resistors in the combination D. Both A & B

Choose correct alternative. The emf of a cell of negligible internal resistance is 2 V. It is connected to the series combination of 2 Omega , 3 Omega and 5 Omega resistances. The potential difference across 3 Omega resistance will be (in volt)