Question

A heater takes 6 amp at 220 v supply. Find the value of resistance

Answer 1

Current (I) =6 amp
and, Potential difference (v) = 220 v
therefore , by ohm's law V= IR
Resistance(R)= V/I
= 220/6
= 36.6 ohm

Answer 2

Concept:

Ohm's law describes the connection between an electric current and a potential difference. Resistance can be calculated by using the formula- V = IR

Given:

Current taken by a heater, I = 6A

Potential difference, V = 220V

Find:

We need to determine the resistance, R.

Solution:

Ohm's law is one of the most fundamental and significant principles governing electrical circuits.

Under the assumption that all physical parameters and temperatures remain constant, Ohm's law asserts that the relationship between a conductor's voltage and current is one of direct proportionality.

It is mathematically expressed as- V = IR where I = Current, R = Resistance and V= Potential difference

The ratio of potential difference to current is known as resistance.

Mathematically, it is written as- R = V/I

We have, V= 220 V and I = 6A

Therefore, R = 220/6

R = 36.6 ohms

Thus, the value of resistance is 36.6 ohms.

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