Recent questions tagged capacitors

Description : Capacitors

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Description : Why capacitors are used to improve power factor?

Last Answer :  Capacitors generate reactive power instead of that drawn from source which is required by inductive loads.so it reduce the reactive current which is drawn from source to be drawn from capacitor.This control in Electric bills cost.

Description : State any four types of capacitors.

Last Answer : Types of capacitors: i) Air capacitor ii) Paper capacitor iii) Mica capacitor iv) Ceramic capacitor v) Electrolytic capacitor vi) Poly-carbon capacitor

Description : What is the charge on each capacitor when a 150 V is applied across two capacitors with values 5 μF and 10 μF, connected in series? A) 500 μC B) 0.5 μC C) 0.5 C D) None of these

Last Answer : What is the charge on each capacitor when a 150 V is applied across two capacitors with values 5 μF and 10 μF, connected in series? A) 500 μC B) 0.5 μC C) 0.5 C D) None of these

Description : The circuit has resistors, capacitors and semi-conductor diodes. The circuit will be known as

Last Answer : The circuit has resistors, capacitors and semi-conductor diodes. The circuit will be known as non-linear circuit.

Description : Capacitors for power factor correction are rated in?

Last Answer : Capacitors for power factor correction are rated in kVAR.

Last Answer : For measurements on high voltage capacitors, the suitable bridge is Schering bridge.

Last Answer : The capacitors used in single-phase capacitor motors have no polarity marking.

Last Answer : In a distribution system, in order to improve power factor, the synchronous capacitors are installed at the receiving end.

Last Answer : Series capacitors on transmission lines are of little use when the load VAR requirement is small.

Last Answer : Series capacitors are used to compensate for line inductive reactance.

Description : What are the different types of capacitors?

Last Answer : (b) is facilitated by telomerase

Description : Which capacitors are suitable for DC filter circuits?

Last Answer : Electrolytic capacitors are suitable for DC filter circuits.

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