(A) 20 ohms
(B) 0.5 ohms
(C) 240 ohms
(D) 2.0 ohms
Tag: Physics Mcq Questions and Answers
Which one of the following statements is correct:
(A) The current flowing from the negative towards positive terminal of the battery is called electronic current.
(B) Electronic current is constituted by the flow of electrons
(C) Electronic current always flows from a lower to higher potential
(D) All the above
Kirchhoff’s first rule is the manifestation of law of conservation of:
(A) Mass
(B) Energy
(C) Momentum
(D) Charge
A gold band shows a tolerance of:
(A) ± 10%
(B) ± 7%
(C) ± 5%
(D) ± 20%
The SI unit of electromotive force is:
(A) Coulomb per second
(B) Joule per coulomb
(C) Coulomb per volt
(D) Volt per ampere
The electromotive force of a battery or cell is the voltage between its terminals when:
(A) The circuit is open
(B) The circuit is closed
(C) Its internal resistance is minimum
(D) Its internal resistance is maximum
The resistance of a 60 watt bulb in a 120 volt line is:
(A) 20 ohms
(B) 0.5 ohms
(C) 240 ohms
(D) 2.0 ohms
Three resistances 5000, 500 and 50 ohms are connected in series across 555 volts mains. The current flowing through them will be:
(A) 1 A
(B) 100 mA
(C) 10 mA
(D) 10 A