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CBSE Class 10 Effects of Electric Current — practice questions — page 6

Explore 163 free Effects of Electric Current questions in CBSE Class 10 Science. Open each question or exercise to read its content, reference answers and available explanation.

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Effects of Electric Current questions and exercises with answers

Showing questions 151–163 of 163.

True or false about circuitsRead the answer and worked solution →Fill the gaps on circuitsRead the answer and worked solution →Order a parallel resistance sumRead the answer and worked solution →Spot the one that does not fitRead the answer and worked solution →Pick the right answer, quicklyRead the answer and worked solution →Match each electrical quantity with its defining formula and SI unit:Read the answer and worked solution →Match each factor affecting resistance of a cylindrical conductor:Read the answer and worked solution →Match each resistor combination rule with its formula:Read the answer and worked solution →Match each thermal and power relationship with its formula:Read the answer and worked solution →Match each electromagnetic device/concept with its inventor or principle:Read the answer and worked solution →Match each electromagnetic vector rule with the quantity it determines:Read the answer and worked solution →Match each domestic alternating current feature with its Indian standard value:Read the answer and worked solution →Match each household safety component with its duty:Read the answer and worked solution →

Worked practice questions

True or false about circuits

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Questions
  1. Statement is true
    Yes
    Statement
    In series the resistances add directly.
  2. Statement is true
    No
    Statement
    In parallel the resistances add directly.
  3. Statement is true
    Yes
    Statement
    An ammeter goes in series.
  4. Statement is true
    No
    Statement
    A voltmeter goes in series.
  5. Statement is true
    Yes
    Statement
    One kilowatt is 1000 watts.
  6. Statement is true
    Yes
    Statement
    Heat goes with the square of current.
Instructions
Decide whether each statement is true or false.
_Source: syllabus Science, Ch 12 'Electricity'_

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Fill the gaps on circuits

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Missing parts
  1. Answer
    add
    Choices
    1. add
    2. cancel
    3. halve
  2. Answer
    reciprocals
    Choices
    1. reciprocals
    2. resistances
    3. remainders
  3. Answer
    current
    Choices
    1. current
    2. voltage
    3. resistance
  4. Answer
    1000
    Choices
    1. 1000
    2. 100
    3. 10000
Complete the statement
In series the voltages {0}. In parallel the {1} add. Heat goes with the square of the {2}. One kilowatt is {3} watts.
Instructions
Tap a word or figure to drop it into the slot.
_Source: syllabus Science, Ch 12 'Electricity'_

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Order a parallel resistance sum

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Steps
  1. Note each resistance
  2. Take one over each
  3. Add those fractions
  4. That gives one over R
  5. Invert the result
  6. Report the equivalent R
Instructions
Tap the steps in the order you would work.
_Source: syllabus Science, Ch 12 'Electricity'_

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