Class X

What happens to the current in short circuit?
  1. reduces substantially
  2. does not change
  3. increases heavily
  4. vary continuously
What is that instrument which can detect the presence of electric current in a circuit?
  1. galvanometer
  2. motor
  3. generator
  4. none of above
Who has stated the Right hand Thumb Rule?
  1. Orsted
  2. Fleming
  3. Einstein
  4. Maxwell
What is that instrument which can detect the presence of electric current in a circuit?
  1. galvanometer
  2. motor
  3. generator
  4. None of these
What should be the core of an electromagnet?
  1. soft iron
  2. hard iron
  3. rusted iron
  4. none of these
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