Narendra Kumar Solutions for Chapter: Electricity, Exercise 5: PROBLEMS FOR PRACTICE

Calculate the equivalent resistance between points $A$ and $B$.

Two resistors of $4 \mathrm{\Omega }$ and $6 \mathrm{\Omega }$ are connected in parallel. The combination is connected across a $6 \mathrm{V}$ battery of negligible resistance. Calculate the current through the battery. Draw a circuit diagram.

Two resistors of $4 \mathrm{\Omega }$ and $6 \mathrm{\Omega }$ are connected in parallel. The combination is connected across a $6 \mathrm{V}$ battery of negligible resistance. Calculate the current through each resistor. Draw a circuit diagram.

Simplify the above circuit so that it consists of one equivalent resistor and the battery.

What is the total current through this circuit?

Find the voltage across each resistor. Record your answers in the spaces below.

Voltage across $200 \mathrm{\Omega }$ resistor: _____

Voltage across $300 \mathrm{\Omega }$ resistor: _____

Voltage across $400 \mathrm{\Omega }$ resistor: _____

Voltage across $500 \mathrm{\Omega }$ resistor: _____

Find the current across each resistor. Record your answers in the spaces below.

Current across $200 \mathrm{\Omega }$ resistor: _____

Current across $300 \mathrm{\Omega }$ resistor: _____

Current across $400 \mathrm{\Omega }$ resistor: _____

Current across $500 \mathrm{\Omega }$ resistor: _____

The $500 \mathrm{\Omega }$ resistor is removed from the circuit. State whether the current through the $200 \mathrm{\Omega }$ resistor would increase, decrease or remain the same.