Question

If an electric circuit has 30ohms and 10amps. How many volts the battery voltmeter should read?

Answer 1

Given that,

Resistance, R = 30 ohms

Current, I = 10 A

To find,

The voltage of the battery.

Solution,

Let V is the voltage of the battery. We can use Ohm's law to find V.

Since, V = IR

Put all the values in the above formula.

V = 10×30

V = 300 Volt

So, the voltage of the battery in the voltmeter is 300 Volt.