Recent questions tagged pure

Description : Pure substances

Last Answer : Any material that is not a mixture, is called a pure substance. Pure substances include elements and compounds. It is much more difficult to break down pure substances into their parts, and complex chemical methods are needed to do this.

Description : In a pure resistive circuit, the average power Pavg is ______ the peak power Pmax. (1) Double (2) One-half of (3) One-fourth (4) Equal to

Last Answer : In a pure resistive circuit, the average power Pavg is One-half of the peak power Pmax.

Description : In a pure capacitive circuit if the supply frequency is reduced to 1/2, the current will?

Last Answer : In a pure capacitive circuit if the supply frequency is reduced to 1/2, the current will be reduced by half.

Description : In a pure inductive circuit if the supply frequency is reduced to 1/2, the current will?

Last Answer : In a pure inductive circuit if the supply frequency is reduced to 1/2, the current will be doubled.

Description : An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms?

Last Answer : An A.C. voltage is impressed across a pure resistance of 3.5 ohms in parallel with a pure inductance of impedance of 3.5 ohms, both resistance and inductance carry equal currents.

Description : The r.m.s. value of pure cosine function is?

Last Answer : 0.707 of peak value

Description : Pure inductive circuit takes power from the A.C. line when?

Last Answer : It takes power when voltage decreases and current increases.

Description : In a pure inductive circuit?

Last Answer : Voltage lagging in inductor

Description : In a pure resistive circuit?

Last Answer : In a pure resistive circuit current is in phase with the voltage.

Description : Pure inductive circuit?

Last Answer : Pure inductive circuit takes power from the line during some part of the cycle and then returns back to it during other part of the cycle.