Generate Quiz 69C5A00F86E99

A series circuit’s current can be controlled by adding resistance. V/R = I. Excessive current can be harmful. Option C is therefore accurate.

Magnetic fields are created surrounding two parallel straight conductors that are carrying current in the same direction. The conductors experience an attractive force as a result of the interaction between these magnetic fields.

The magnetic field lines surrounding each conductor are in the same direction when the currents are flowing in the same direction, as per the right-hand rule for wires. Consequently, one conductor’s magnetic field lines will cross over and interact with the other conductor’s magnetic field lines. The conductors are drawn to one another by the net force created by this interaction.

The magnetic force between the two parallel straight conductors carrying current in the same direction is therefore the reason for their attraction. Option A) accurately recognizes [

There are three formulas for electrical power: P = IV, P = I^R, and P = V^2 / R.

V = IR, which can be rearranged as I = V/R, is the formula for Ohm’s Law. Option D is therefore appropriate.

The force that propels the charges to move through the circuit is the potential difference, sometimes referred to as voltage. Since the circuit’s charge flow is constant under a steady current, the potential difference across the circuit must likewise be constant. The circuit’s current won’t be constant if the potential difference changes because it will fluctuate as well.

In this instance, we are provided with the bulb’s voltage (V), which is 220 V, and power (P), which is 100 W. We can apply the power formula:

V2/R = Power (P)

V2/P = R

= (220)2/100

= 22 x 22

= 484 Ohms