Description : can inductors have resistance?
Last Answer : Yesss every inductor has resistance ... Because it is also made up of good conductor have some value of resistance practicaly But ideal inductor has resistance is zero
Description : An air core transformer has primary and secondary inductors of 8mH and 10 mH respectively. The mutual inductance is 5mH. The coefficient of coupling is A) 1/8 B) 1/6 C) ¼ D) ½
Description : What bridge is used to measure high-Q inductors? (Q>10)
Last Answer : hay bridge
Description : The substances which have a large number of free electrons and offer a low resistance are called (a) insulators (b) inductors (c) semi-conductors (d) conductors
Last Answer : (d) conductors
Description : Maximum power is transferred when load impedance is A) equal to source impedance B) equal to half of the source impedance C) equal to zero D) none of the above
Description : When the capacitors of a Wein Bridge are replaced by inductors, the bridge becomes ___
Last Answer : Wein Inductance Bridge
Description : Series reactors should have (a) low resistance (b) high resistance (c) low impedance (d) high impedance
Last Answer : (a) low resistance
Description : Non-inverting amplifier circuits have _______ (a) Very high input impedance (b) very low input impedance (c) low output impedance (d) none of above
Last Answer : (a) Very high input impedance
Description : Which of the following statements is incorrect? (a) Station batteries are used to operate relay only (b) The lightning arresters are basically surge diverters (c) An impedance relay has maximum fault current when fault occurs near the relay (d) A high speed relay has an operation of 1 to 2 cycles
Last Answer : (a) Station batteries are used to operate relay only
Description : When CS _____ the chip is not selected at all hence D7 to D0 are driven to high impedance state: a. High b. Low c. Medium d. Stand by
Last Answer : a. High
Description : What happens to output when a tri-state circuit is selected for high impedance.
Last Answer : Output is disconnected from rest of the circuits by internal circuitry.