Question

A heating coil operates on $220 \mathrm{V}$. If it draws $8.75 \mathrm{A}$, find its resistance.

Name: Problem 13, Chapter 17: Applied Physics
Uploaded: 2021-07-09T09:16:50-08:00
Duration: 1 min
Channel: Prabhu Ramji
Description: A heating coil operates on 220 V. If it draws 8.75 A, find its resistance.

   A heating coil operates on $220 \mathrm{V}$. If it draws $8.75 \mathrm{A}$, find its resistance.

Applied Physics

Dale Ewen, Neill… 10th Edition

Chapter 17, Problem 13

Instant Answer

Solved by Expert Prabhu Ramji

07/09/2021

Step 1

This is given by Ohm's law, which can be written as: \[ V = I \cdot R \] Show more…

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A heating coil operates on $220 \mathrm{V}$. If it draws $8.75 \mathrm{A}$, find its resistance.

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Key Concepts

Ohm's Law

Ohm's Law is a fundamental principle in electricity and electronics that defines the relationship between voltage (V), current (I), and resistance (R) in a circuit, expressed as V = I × R. This law allows one to calculate the resistance of an element when the voltage and current are known by rearranging the equation to R = V / I.

Electrical Resistance

Electrical resistance is a property of a material or component that impedes the flow of electric current. It is measured in ohms (?) and plays a critical role in determining how much current will flow in response to a given voltage, affecting the performance and efficiency of electrical devices.

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