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JEE Main Current Electricity — practice questions — page 4

Explore 100 free Current Electricity questions in JEE Main Physics. Open each question or exercise to read its content, reference answers and available explanation.

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Current Electricity questions and exercises with answers

Showing questions 91–100 of 100.

Which device detects the current in a Wheatstone bridge?Read the answer and worked solution →The resistance offered by the cell itself is called:Read the answer and worked solution →Match each quantity to its meaningRead the answer and worked solution →Series or parallelRead the answer and worked solution →True or false on current electricityRead the answer and worked solution →Depends on shape or on materialRead the answer and worked solution →Order the drift of electronsRead the answer and worked solution →Fill the gaps on current electricityRead the answer and worked solution →Quick picks on current electricityRead the answer and worked solution →Spot the one that does not fitRead the answer and worked solution →

Worked practice questions

Which device detects the current in a Wheatstone bridge?

  1. Gravimeter
  2. Granulator
  3. Galvanometer
  4. Galvaniser
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Correct answer: C. Galvanometer

1. It is connected between the other two vertices of the bridge. 2. A galvanometer, a device to detect currents, is connected there. 3. So the correct answer is galvanometer. _Source: syllabus Physics Part I, Ch 3 'Current Electricity'_

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The resistance offered by the cell itself is called:

  1. Interval
  2. Integral
  3. Inverted
  4. Internal
Show answer and solution

Correct answer: D. Internal

1. A real cell is not a perfect source. 2. The resistance r of the cell is called the internal resistance. 3. So the correct answer is internal. _Source: syllabus Physics Part I, Ch 3 'Current Electricity'_

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Match each quantity to its meaning

Read exercise and reference answers
Matching pairs
  1. Left
    Resistivity
    Right
    Depends on material, not shape
  2. Left
    Conductivity
    Right
    The reciprocal of resistivity
  3. Left
    Current density
    Right
    Current per unit area
Instructions
Tap a term, then tap the line that defines it.
_Source: syllabus Physics Part I, Ch 3 'Current Electricity'_

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