When a device is used in a circuit in which the voltage is 81 v, the current flowing through the device is 3a. what is the resistance of the device?

Answer

The resistance of the circuit is 27 ohms .

Explanation :

The relationship between the current , voltage and resistance is given by .

Where I is current , V is voltage and R is resistance .

As given

The voltage is 81 V, the current flowing through the device is 3A.

Putting the values

R = 27 ohms

Therefore the resistance of the circuit is 27 ohms .

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correct it is c.) b b