Question:

An electric heater is connected to the voltage supply. After few seconds, current gets its steady value then its initial current will be

Updated On: Jun 23, 2023
  • equal to its steady current
  • slightly higher than its steady current
  • slightly less than its steady current
  • zero
Hide Solution
collegedunia
Verified By Collegedunia

The Correct Option is B

Solution and Explanation

When the heater is connected to the supply its initial current will be slightly higher than its steady value but due to heating effect of the current the temperature will rise. This causes an increase in resistance and a slight decrease in current to steady current.
Was this answer helpful?
0
0

Concepts Used:

Current Electricity

Current electricity is defined as the flow of electrons from one section of the circuit to another.

Types of Current Electricity

There are two types of current electricity as follows:

Direct Current

The current electricity whose direction remains the same is known as direct current. Direct current is defined by the constant flow of electrons from a region of high electron density to a region of low electron density. DC is used in many household appliances and applications that involve a battery.

Alternating Current

The current electricity that is bidirectional and keeps changing the direction of the charge flow is known as alternating current. The bi-directionality is caused by a sinusoidally varying current and voltage that reverses directions, creating a periodic back-and-forth motion for the current. The electrical outlets at our homes and industries are supplied with alternating current.