In Resistor- Capacitor circuit the negative instantaneous power means:

(A) The source is dispensing the power
(B) The element is dissipating the power from the source
(C) The source is releasing the power to the circuit
(D) The element is releasing the power to the circuit

Answer: (D) The element is releasing the power to the circuit
In Resistor- Capacitor circuit the negative instantaneous power means the element is releasing the power to the circuit.

Self inductance of solenoid is:

(A) Inversely proportional to the area of cross section
(B) Inversely proportional to the number of turns
(C) Inversely proportional to its length
(D) None of these

Answer: (C) Inversely proportional to its length
Self inductance of solenoid is inversely proportional to its length.

An inverter is:

(A) Changes low to high
(B) Changes high to low
(C) Performs not operations
(D) All of these

Answer: (D) All of these