a) The figure below shows a series LCR circuit. i) Calculate the phase angle between current and voltage. ii) Which one leads in phase, current or…
Class 12 Physics · 2082 · Solved Question with Answer
a) The figure below shows a series LCR circuit.
i) Calculate the phase angle between current and voltage.
ii) Which one leads in phase, current or voltage? Justify.
b) What is meant by impedance of an ac circuit?
c) Two parallel wire P and Q carrying currents I₁ and I₂ are placed in the air at a distance r apart as shown in figure.
i) Obtain an expression for the magnitude of force per unit length between them.
ii) What is the nature of force in this case?
iii) What will be the force per unit length between two wires if distance between wires is halved, keeping all other quantities constant?