Question

a voltmeter reads 24 volt across a resistor of an ammeter reads a current of 3A through it calculate are what will be the current through the registration of the voltage change of 12 volt​

Answer 1

Answer: 1.5 Ampere.

Hope it helps you

Answer 2

The current through the resistor is 1.5 A.

Explanation:

The relationship between potential difference, current and resistance,

$V=IR$

Here I is the current, V is the voltage and R is the resistance.

Given voltage through voltmeter, V  =  24 V and  I = 3 A

substitute the values, we get

$24V=3A \times R$

$R= 8 \ohm$ ohm

This the resistance of the resistor.

Current through the resistor when voltage changes to 12 V,

$I=\frac{12}{8}$

I = 1.5 A.

Thus, the current through the resistor is 1.5 A.

#Learn More: Ohm`s law

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