Find the total voltage applied in a series RLC circuit when i=3mA, VL=30V, VC=18V and R=1000 ohms.
Explanation: Total voltage= VR+VL+VC.
Therefore, total voltage = 30+18+3=51V.
The power factor of an RL circuit 1/root2. If the frequency of a.c. is doubled, what will be the power factor?
When an emf E = 7cos wt is applied across a circuit, the current is I = 5coswt. What is the power factor for the circuit?
What is value of power factor if Ø = 90°
Power in an ac circuit is equal to
If the instantaneous current in a circuit is given by i = 2 cos (ωt - φ) A, the rms value of the current is
Find the true power given apparent power = 10 W and power factor = 0.5
What is the average power/cycle in a capacitor?
What is phase angle given R = 10, Z = 20
In a circuit, the reactance X and resistance R are equal. What is the power factor?