Question

4. Find the voltage V in the given figure

Answer 1

Current in the circuit = voltage/resistance

= 50 V / (6+4) ohm

= 50/10

= 5 A

Voltage across 6 ohm resistor = IR

= 5×6

= 30 V

Answer 2

Answer:

30 volts.

Explanation:

The resistors of 4ohm and 6 ohm are in series.

So, their equivalent resistance will be

$r = 6 + 4 = 10ohm$

The applied voltage is 50 V

Using

$v = ir$

The current in the circuit will be

$50 = i \times 10 \\ i = 5amp$

So 5 ampere current flows through the circuit.

Now using V=IR on the 6 ohm resistance,

$v =5 \times 6 = 30$

So the voltage difference along the 6 ohm resistance is 30 volt.