Question

the current flowing through a conductor and the potential difference across its ends are as per the readings of ammeter and voltmeter is 290mA and 5.8v the resistance of conductor would be

Answer 1

The resistance of the conductor will be 20 Ω

Explanation :

From ohms law we know that resistance is the ratio of voltage to current. i.e.

Resistance = voltage/current

Voltage across the conductor = voltmeter reading = 5.8 v

Current flowing through the conductor = ammeter reading = 290 mA

= 290 x 10⁻³

= 0.29 A

Hence Resistance,

R = 5.8/0.29 = 20 Ω

Hence the resistance of the conductor will be 20 Ω

Answer 2

V=ir

5.8/.29=20ohm

As to convert MA to A

We have divide current by 1000