Class VII

Electricity is formed by
  1. positively charged ions
  2. negatively charged ions
  3. electrons
  4. protons
Abbreviation of MCB is for
  1. moving circuit breaker
  2. manual current breaker
  3. manual circuit breaker
  4. miniature circuit breaker
If two cells are connected in series, voltage will be
  1. halved
  2. doubled
  3. tripled
  4. quartered
Resistor that contains a long coil of nichrome is known as
  1. Variable resistor
  2. Thermistor
  3. Transistor
  4. Fixed resistor
Nichrome is used because it has
  1. high resistance only
  2. high melting point only
  3. high resistance and melting point
  4. high current and voltage
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