GENERAL KNOWLEDGE

GK

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Two identical resistors are connected in parallel across the terminals of a battery. If you increase the resistance of one of the resistors, what happens to the current through and the voltage across the other resistor?
A
The current and the voltage remain the same.
B
The current decreases and the voltage remains the same.
C
The current and the voltage increases.
D
The current increases and the voltage remains the same.
Explanation: 

Detailed explanation-1: -55. Two identical resistors are connected in parallel across the terminals of a battery. If you increase the resistance of one of the resistors, what happens to the current through and the voltage across the other resistor? The current and the voltage remain the same.

Detailed explanation-2: -Two identical resistors in parallel have an equivalent resistance half the value of either resistor. The current splits equally between the two.

Detailed explanation-3: -In a series circuit, the current is the same at each resistor. If the light bulbs are identical, then the resistance is the same for each resistor. The voltage drop (I•R) will be the same for each resistor since the current at and the resistance of each resistor is the same.

Detailed explanation-4: -When two resistors are connected in parallel, the voltage across both resistors is the same. The battery current is split between the two resistors. The smallest resistance has the largest current through it.

Detailed explanation-5: -When resistors are connected in parallel, voltage across each of the resistors is same.

There is 1 question to complete.