Question

if there are 7 amps running through a 3 ohm resistor what will the voltage be
across the resistor
please tell me fast ​

Answer 1

Current, I = 7 A

Resistance, R = 3 Ohm

Voltage = Resistance × Current

==> V = I × R

==> V = 7 × 3

==> V = 21 Volt

Answer 2

Answer:

The answer will be 21 V.

Explanation: According Ohm's law,

                                              V = IR                                   (i)

Given, I or current = 7 Ampere

and      R or resistance = 3 ohm

Now, put the value of these given variables in equation (i);

                           V = (7)(3)

This gives us,

                         V = 21 volts

Hence, if there is 7 A is running through a 3 ohm resistor then the voltage will be 21 volts.

That's all.