Course 6001 mock test

In a pure resistance circuit, Voltage (VR) and current (IR) are

• In phase

• Out of phase

• Current Leads the voltage by 90 degrees

• Current lags the voltage by 90 degrees

In an inductive circuit, the current (IL) and voltage (VL) are

• Current lags the voltage by 90 degrees

• Out of phase

• In phase

• Current leads the voltage by 90 degrees

What is the relationship between power (P), voltage (V), and current (I) in an electrical circuit?

• P = V * I

• P = V / I

• P = V - I

• P = V + I

A conductor moving parallel to lines of magnetic Flux produces which of the following

• no emf

• maximum emf

• 50% emf

• 25% emf

Quadrature power is another name for

• reactive power

• true power

• apparent power

• power factor

What is the skin effect

• the concentration of charge is more near the surface as compared to the core of the conductor
  
  

• the concentration of charged more near the core of the conductor compare to the surface

• the concentration of electrons by the insulation of the material

• the concentration of protons more near the surface as compared to the core of the conductor.

Find for S

• 10.6m

• 15m

• 11m

• 13m

What is the unit of reactive power?

• Watt

• Volt-Ampere Reactive (VAR)

• Ohm

• Farad

In a capacitive circuit, the current (IC) and voltage (VC) are

• Out of phase

• Current leads the voltage by 90 degrees

• In phase

• Current lags the voltage by 90 degrees

What happens to the resistance of a conductor as its temperature increases?

• It decreases

• It remains constant

• It increases

• It fluctuates