Current Electricity Objective Question In English
Current Electricity Objective Question In English | Class 12 Physics Objective Question | Class 12 Physics Chapter 3 Current Electricity MCQs | Current electricity objective questions class 12
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Current Electricity Objective Question In English
1. The specific resistance of conductor increase with
- (A) increase of temperature
- (B) increase of cross-sectional area
- (C) decrease of the cross-sectional area
- (D) decrease in length
Show Answer
(A) increase of temperature
2. Which one of the following is the best material for making connecting wires?
- (A) Nichrome
- (B) Tungsten
- (C) Copper
- (D) Manganese
Show Answer
(C) Copper
3. Fuse-wire is made of which material ?
- (A) Copper
- (B) Tungsten
- (C) Lead-Tin Alloy
- (D) Nichrome
Show Answer
(A) Copper
4. Three resistors of resistance Reach are combined in various ways. Which of the following cannot be obtained ?
- (A) 3R
- (B) 2R/4
- (C) R/3
- (D) 2R/3
Show Answer
(B) 2R/4
5. If on increasing the temperature, resistance decreases then it is
- (A) Superconductor
- (B) Semiconductor
- (C) Insulator
- (D) None
Show Answer
(B) Semiconductor
6. You are given three resistances each of one ohm. The maximum resistance that can be obtained by their combination is
- (A) 1 ohm
- (B) 1/2 ohm
- (C) 2 ohm
- (D) 3 ohm
Show Answer
(D) 3 ohm
7. The resistance of an ideal voltmeter is
- (A) infinite
- (B) zero
- (C) 500 Ω
- (D) None
Show Answer
(A) infinite
8. The resistance of an ideal ammeter is
- (A) infinite
- (B) zero
- (C) 500 Ω
- (D) very long
Show Answer
(B) zero
9. The SI unit of temperature co-efficient of resistivity is
- (A) Ω mK-1
- (B) K-1
- (C) Ω-1
- (D) Sm-1
Show Answer
(B) K-1
10. If the temperature is increased by 3°C, the value of temperature co-efficient of resistivity.
- (A) increases
- (B) decreases
- (C) remains almost the same
- (D) none
Show Answer
(C) remains almost the same
11. A heater is rated as 1000W, 230V. Its resistance is
- (A) 22.9 Ω
- (B) 32.9 Ω
- (C) 42.9 Ω
- (D) 52.9 Ω
Show Answer
(D) 52.9 Ω
12. The Kirchhoff’s point rule obeys the principle of conservation of
- (A) energy
- (B) charge
- (C) momentum
- (D) mass
Show Answer
(B) charge
13. The property of a circuit that converts electrical energy into thermal energy is called,
- (A) resistance
- (B) current
- (C) voltage
- (D) electromotive force
Show Answer
(A) resistance
14. The electrical appliances in our houses are connected across supply switch in
- (A) series
- (B) parallel
- (C) mixed grouping
- (D) none
Show Answer
(B) parallel
15. Negative charges flow from
- (A) low to high potential
- (B) high to low potential
- (C) independent of potential where
- (D) none
Show Answer
(A) low to high potential
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Class 12 Physics Objective Question | Related Post
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Current Electricity Objective Question In English | Class 12 Physics Objective Question
Pattern Based | Bihar Board, Patna |
Class | 12th or Inter |
Stream | Science |
Category | Class 12 Physics Mcq |
Chapter Name | Current Electricity |
Subject | Physics Class 12th |
Class 12th English Summary | BSEB Class 12th English Summary |
Class 10th Science All Chapter Objective Question | Click Hare |
Type Of Question | Objective Question || 01 Marks |
Script | Hindi And English Medium |
Published On | Bihari Academy |