Question

1. Which of the following is blocked by a capacitor?
(a) AC
(b) DC
(c) Both AC and DC
(d) Neither A C. nor D.C​

Answer 1

Answer:

Dc because Dc means DC blocked capacitor

Answer 2

(b) DC is blocked by a capacitor.

What are DC and AC?

• DC stands for direct current and the direction of the flow of electric charge does not change in the case of DC.
• AC stands for alternating current and in AC, the direction of the electric charge or electric current changes periodically

What happens when AC and DC are allowed to flow through a capacitor?

• When DC is allowed to flow through a capacitor, the electric charge flows through the plates of the capacitor.
• Electrons from the positive terminal flow towards the negative terminal and charge one plate of the capacitor positively while the other one, negatively.
• When both the plates are completely charged, they behave as an open circuit and the capacitor behaves as an open circuit.
• However, in the case of AC, the direction of the current reverses periodically. Hence, the plates charge and discharge after a while.
• Thus, we can conclude that DC will be blocked by a capacitor.