Question

How much current will an electric heater coil draw from 220V source, If the resistance of the heater coil is 100 OHM?​

Answer 1

Answer:

V = IR

220 = I × 100

220 / 100 = I

I = 22 / 10

I = 2.2

Answer 2

$\bigstar$ Given

Voltage = 220 V

Resistance = 100 Ω

$\bigstar$ To Find

Current

$\bigstar$ Solution

We know that

$\red{\rm \longrightarrow I=\dfrac{V}{R}}$

Here

• I = Current
• V = Voltage
• R = Resistance

Units

• I = Ampere (A)
• V = Volt (V)
• R = Ohm (Ω)

According to the question

We are asked to find current

Therefore

We must find "$\rm I$"

Given that

Voltage = 220 V

Resistance = 100 Ω

Hence

• V = 220 V
• R = 100 Ω

Substituting the values

We get

$\pink{\rm \longrightarrow I=\dfrac{220}{100} \ A}$

Therefore

$\purple{\rm \longrightarrow I=2.2 \ A}$

Hence

$\checkmark$ Current = 2.2 Amperes