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10th Grade > Physics

ELECTRICITY MCQs

Total Questions : 244 | Page 9 of 25 pages
Question 81. If the charge passes through a wire is 0.5C then the current of 50 mA will flow in
  1.    10 seconds
  2.    15 seconds
  3.    12 seconds
  4.    20 seconds
 Discuss Question
Answer: Option A. -> 10 seconds
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 82. A fuse is always connected with live wire in
  1.    parallel
  2.    series
  3.    combination
  4.    alternative circuit
 Discuss Question
Answer: Option B. -> series
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 83. Ohm's law can be defined as
  1.    V = It
  2.    V = If
  3.    V = IR
  4.    V = I⁄R
 Discuss Question
Answer: Option C. -> V = IR
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 84. If 2 resistors of 5kΩ and 7kΩ are connected in series across a 15V battery, then the potential difference across each of the resistance should be
  1.    2V, 3V
  2.    10V, 14V
  3.    5V, 7V
  4.    8V, 6V
 Discuss Question
Answer: Option C. -> 5V, 7V
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 85. If a person's skin is wet then the resistance becomes only 1000Ω resistance. How much current would he receive from the battery of 12 V?
  1.    2.3 × 10-²
  2.    1.2 × 10-²
  3.    2.9 × 10-²
  4.    3.6 × 10-²
 Discuss Question
Answer: Option B. -> 1.2 × 10-²
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 86. SI unit of potential difference is
  1.    kg
  2.    kg
  3.    joule
  4.    volt
 Discuss Question
Answer: Option D. -> volt
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 87. An energy saver light bulb that uses 11J of electrical energy gives the same amount of light as an ordinary bulb that uses
  1.    60 J
  2.    50 J
  3.    30 J
  4.    22 J
 Discuss Question
Answer: Option A. -> 60 J
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 88. The negative terminal of the battery is connected to the voltmeter's
  1.    partially positive terminals
  2.    negative terminal
  3.    positive terminal
  4.    partially negative terminal
 Discuss Question
Answer: Option B. -> negative terminal
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 89. The color of the terminal of the galvanometer that shows the positive polarity is
  1.    red
  2.    blue
  3.    black
  4.    green
 Discuss Question
Answer: Option A. -> red
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 90. The specific resistance of the copper wire is
  1.    5.25 × 10-⁸
  2.    1.69 × 10-⁸
  3.    9.8 × 10-⁸
  4.    2.75 × 10-⁸
 Discuss Question
Answer: Option B. -> 1.69 × 10-⁸
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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