Question

an electronic device has a resistance of 20 ohms and a current of 15 a . What is the voltage across the device ?​



please say...

Answer 1

Answer:

300 V

Explanation:

V = IR

Here,

R = 20 ohms

I = 15 A

V= 20×15 =300 V

Answer 2

Explanation:

Given:

Resistance of the device $= 20 ohms$

Current through the device $=15 Amp$

To Find: Voltage across the device

Calculation:

Almost all conducting materials obey Ohm's Law. According to Ohm's Law - "Potential difference across a conducting material is directly proportional to the current flowing through it." If $V$ is the potential difference and $I$ is the current flowing through a material with resistance $R$, then:

$V$ ∝ $I$

$V=IR$

So,

$V=IR\\V=20*15\\V=300Volts$

Answer:

Voltage across the device is $300 V$.