Class X

. The units of house hold consumption of electrical energy are _____.
  1. Ohm-meter (Ωm)
  2. work done, 1J(1 Joule)
  3. watt (W
  4. Kilo Watt Hour (KWh)
The effective resistance is less than any individual resistances when resistances are connected in _________.
  1. parallel
  2. series
  3. work done, 1J(1 Joule)
  4. Ohm-meter (Ωm)
. When resistances (R1, R2, R3...) are connected in series, their equivalent resistance is equal to the of the individual resistances. i.e. R = __________
  1. 18 Ω
  2. work done, 1J(1 Joule)
  3. Ohm-meter (Ωm)
  4. sum, R = R1 + R2 + R3 + ...
On which of the following no “plus” or “minus” sign is marked
  1. a battery
  2. an ammeter
  3. a voltameter
  4. a resistor
Units of specific resistance _____.
  1. Ohm-meter (Ωm)
  2. work done, 1J(1 Joule)
  3. 18 Ω
  4. parallel
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