A fixed resistor of is connected across a battery

PHYSICS · Subjective · CBSE · Physics · Electricity · Electricity

Problem

A fixed resistor of

2.2\,\text{k}\Omega

is connected across a

9.0\,\text{V}

battery. (i) Find the current drawn from the battery. (ii) The resistor is replaced by another of

1.1\,\text{k}\Omega

. By what factor does the current change? Support your answer with calculation. (iii) Keeping the

1.1\,\text{k}\Omega

resistor, the battery voltage is increased to

18\,\text{V}

. Calculate the new current.