Class 12 Physics Chapter Current Electricity Free MCQ Test Quiz

#FreeQuiz #PhysicsQuiz As physics can be a challenging subject, it is important to have a comprehensive understanding of each topic. The Current Electricity Free Test Quiz offers Class 12 students a unique online platform to revise and test their knowledge on Chapter – Current Electricity. This platform incorporates multiple-choice questions (MCQs) designed explicitly to align with the curriculum and the specificities of the chapter. With the current electricity class 12 MCQ online test, students can study at their own pace, enhancing their understanding and analytical skills.

Check Class 12th Physics Current Electricity Knowledge

Time: 30 Minutes for 20 Question.

Physics Chapter 3 Current Electricity Free test quiz

12th Physics: Current Electricity

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1. An electrical cable of copper has just one wire of radius 9 mm. Its resistance is 5 ohm. This single copper wire of the cable is replaced by 6 different well insulated copper wires each of radius 3 mm. The total resistance of the cable will now be equal to

7.5 ohm

45 ohm

90 ohm

270 ohm

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2. Ten identical cells connected in series are needed to heat a wire of length one meter and radius ‘r’ by 10ºC in time ‘t’. How many cells will be required to heat the wire of length two meter of the same radius by the same temperature in time ‘t’?

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3. To minimise the power loss in the transmission cables connecting the power stations to homes and factories, the transmission cables carry current

at a very low voltage.

at a very high voltage

at 220 volt

neither at a very high voltage nor at a very low voltage.

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4. The resistance of a metal increases with increasing temperature because

the collisions of the conducting electrons with the electrons increase

the collisions of the conducting electrons with the lattice consisting of the ions of the metal increase

the number of conduction electrons decreases

the number of conduction electrons increases

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5. The current density (number of free electrons per m³) in metallic conductor is of the order of

10²²

10²⁴

10²⁶

10²⁸

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6. What is the suitable material for electric fuse?

Constantan

Tin-lead alloy

Nichrome

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7. In the series combination of two or more than two resistances

the current through each resistance is same

the voltage through each resistance is same

neither current nor voltage through each resistance is same

both current and voltage through each resistance are same.

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8. A cell of internal resistance r is connected to an external resistance R. The current will be maximum in R, if

R : r

R < r

R > r

R : r/2

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9. In meter bridge or Wheatstone bridge for measurement of resistance, the known and the unknown resistance are interchanged. The error so removed is

end correction

index error

due to temperature effect

random error

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Chapter wise quiz of XII class physics

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FAQ of Class 12 Physics Chapter 3 test

Q1: Is the test quiz time-bound chap 3 of Physics, or can I attempt it at my own pace?

Ans: The chapter 3 test quiz is typically time-bound, and you should complete within time period. Although you can attempt unlimited time free quiz of chap 3 and other’s chapter without any worry.

Q2: Can I retake the test quiz multiple times for chapter 3 to track my progress?

Ans: Yes. You can take as many as times of Chap 2. Taking the quiz more than once can be beneficial as it allows you to monitor your progress, identify areas of improvement, and reinforce your understanding of the subject matter.

Q3: Will the test quiz help me score better in my Class 12 Physics exam if I clear Chapter 3 and other all chapter?

Ans: Yes, You must score well in chapter 3 test and other chapter quiz. The test quiz is an excellent supplementary tool to improve your performance in the Class 12 Physics exam. By attempting the quiz and reviewing your answers, you can identify weak areas and focus on improving them. Consistent practice and revising concepts through such quizzes can boost your confidence and enhance your overall performance in the exam. However, it’s essential to complement the quiz with regular studies and consultation with teachers or mentors for comprehensive preparation.

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Mohit Sinha

I’m Mohit Sinha! With a Master’s degree in Physics, I bring a deep understanding of the subject to my teaching. I specialize in guiding students through the complexities of Physics for 11th and 12th grades and also offer English instruction from 1st to 12th grade. When I'm not in the classroom, I'm passionate about creating engaging educational content for QuizRanker.in, where I help make learning both fun and effective.