1
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
An electric wire of resistance 50 ohm is cut into five equal wires. These wires are then connected in parallel. What is the equivalent resistance of this combination?
A
2 ohm
B
10 ohm
C
0.5 ohm
D
5 ohm
2
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
The electric field lines from an isolated positively charged conducting sphere are
A
tangential to the conducting surface
B
at right angles to the conducting surface and towards the centre of the sphere
C
at any angle to the conducting surface
D
at right angles to the conducting surface and outwards from the centre of the sphere
3
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Which one of the following is not a solution?
A
Alloy
B
Milk
C
Air
D
Sugar
4
NDA General Ability 10 April 2022
MCQ (Single Correct Answer)
+4
-1.33
Change Language
Refining of petroleum is carried out using which one of the following techniques?
A
Evaporation
B
Fractional distillation
C
Separating funnel
D
Sublimation
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