Question

15. A water heater has a resistance of 22 32 connected to a 220-V voltage source.
What is the needed current to operate the heater?
A. 5 A
B. 7 A
C. 8 A
D. 10 A​

Answer 1

Answer:

10 Ampere of current is used to operate the heater

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Answer 2

Concept

• Resistance is described as a resistance to the passage of current. To convert electrical energy to light, heat, or movement, an electrical circuit must have resistance.
• It is well understood that a current flow is formed by the directed movement of electrons.
• It is also known that electrons do not readily travel through the crystalline structure of a conductor.
• Resistance is an intrinsic obstacle to electron flow in conductors.

Given

Resistance given is 22 Ω

Voltage given is 220 V

Find

We need to find the Electric current

Solution

As we know that V = IR

Therefore , I = V/R

I = 220 / 22

I = 10 A

Hence the current needed to operate the heater is 10A

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