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Dear candidates you will find MCQ questions of Current Electricity here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

V

Vinay Kumar • 8.45K Points
Tutor III

Q. 1) 1 angstrom is equal to

(A) 10-8 mm
(B) 106 cm
(C) 1010 m
(D) 1014 m
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V

Vinay Kumar • 8.45K Points
Tutor III

Q. 2) A 3 Q resistor having 2 A current will dissipate the power of

(A) 2 watts
(B) 4 watts
(C) 6 watts
(D) 8 watts
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V

Vinay Kumar • 8.45K Points
Tutor III

Q. 3) A 40 W bulb is connected in series with a room heater. If now 40 W bulb is replaced by 100 W bulb, the heater output will

(A) decrease
(B) increase
(C) remain same
(D) heater will burn out
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V

Vinay Kumar • 8.45K Points
Tutor III

Q. 4) A closed switch has a resistance of

(A) zero
(B) about 50 ohms
(C) about 500 ohms
(D) infinity
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V

Vinay Kumar • 8.45K Points
Tutor III

Q. 5) A current of 16 amperes divides between two branches in parallel of resistances 8 ohms and 12 ohms respectively. The current in each branch is 

(A) 6.4 A, 6.9 A
(B) 6.4 A, 9.6 A
(C) 4.6 A, 6.9 A
(D) 4.6 A, 9.6 A
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Vinay Kumar • 8.45K Points
Tutor III

Q. 6) A field of force can exist only between

(A) two molecules
(B) two ions
(C) two atoms
(D) two metal particles
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Vinay Kumar • 8.45K Points
Tutor III

Q. 7) A glass rod when rubbed with silk cloth is charged because

(A) it takes in proton
(B) its atoms are removed
(C) it gives away electrons
(D) it gives away positive charge
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Vinay Kumar • 8.45K Points
Tutor III

Q. 8) A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is

(A) 400 Q
(B) 600 Q
(C) 800 Q
(D) 1000 Q
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Vinay Kumar • 8.45K Points
Tutor III

Q. 9) A nichrome wire used as a heater coil has the resistance of 2 £2/m. For a heater of 1 kW at 200 V, the length of wire required will be

(A) 80 m
(B) 60 m
(C) 40 m
(D) 20 m
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Vinay Kumar • 8.45K Points
Tutor III

Q. 10) A resistance having rating 10 ohms, 10 W is likely to be a

(A) metallic resistor
(B) carbon resistor
(C) wire wound resistor
(D) variable resistor
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