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

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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

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(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

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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

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(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	12^thor Inter
Stream	Science
Category	Class 12 Physics Mcq
Chapter Name	Current Electricity
Subject	Physics Class 12th
Class 12^th English Summary	BSEB Class 12th English Summary
Class 10^th Science All Chapter Objective Question	Click Hare
Type Of Question	Objective Question \|\| 01 Marks
Script	Hindi And English Medium
Published On	Bihari Academy