Physics ICS Part 2 Chapter 13 Online MCQ's Test With Answers

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Physics ICS Part 2 Chapter 13 Online MCQ's Test

Sr. # Questions Answers Choice
1 The SI unit of resistivity is. Ohm m-2 Ohm m-1 Ohm m Ohm
2 mho -m-1 is the unit of. Resistance Resistivity Conductance Conductivity
3 The reciprocal of resistance is called. Capacitance Resistance Conductance Inductance
4 The unit of temperature co efficient of resistivity is. Ohm -m K-1 K Ohm
5 Specific resistance of a material depends upon. Length Area Temperature Both A and B
6 When a wire of length 'l' and resistance R is cut into two equal parts then resistivity of each part. is doubled Remains the same Is halved Is one fourth
7 The current through a resistance of 100 Ohm when connecting across a source of 220 V is. 22000 A 22 A 2.2 A 0.45 A
8 The current flowing through each resistor of equal resistance in parallel combination is. Same Different Zero Infinite
9 One ohm is equal to VC-1 CV-1 AC-1 VA<sup>-1</sup>
10 Two resistance of 2 Ohm each are connected in parallel combination equivalent resistance will be. 4 Ohm 2 Ohm 1 Ohm 8 Ohm
11 For ohmic device the graph between V and I is. A straight line Curve Hyperbola Parabola
12 Magnetic effect of current is used in. Toaster Electric iron Electric motor D.C. Battery
13 The head produced by the passage of current through a resistor is. H= I<sup>2</sup>Rt H = IR<sup>2</sup>t H = 1/Rt H = I<sup>2</sup>/Rt
14 Heat generated by a 40 W bulb in one hour is. 140 J 1440 J 14400 J 144000 J
15 5 A of current flows through a conductor in 2 minutes, charge in the wire is. 500 C 600 C 400 C 10 C
16 By increasing the temperature of conductor, the flow rate of charges. Increase Remains constant Decreases Changes exponentially
17 the current which flows from a point at higher. potential to point at lower potential is called. Electric current Conventional current Either of these None of above
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