Question

There are five resistors in a given series circuit and each resistor has $6V$ dropped across it. The source voltage

• A. is $6V$
• B. depends on the current flow
• C. depends on the resistor values
• D. is $30V$

Answer 1

Answer: (D)

is $30V$

Voltage drop across each resistor $E^{\prime }=6V$

Source voltage is equal to the sum of the voltage across five resistors connected in series.

Thus source voltage $E=5E^{\prime }$

$\therefore$ $E=5\times 6=30V$