Electricity Exam: Physics Trivia Quiz!

25 Questions | By Shreevatsa00 | Last updated: Mar 21, 2022 | Total Attempts: 196

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Electricity Exam: Physics Trivia Quiz! - Quiz

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1.

An electrical appliance has a resistance of 25 Ω. When this electrical appliance is connected to a 230 V supply line, the current passing through it will be:
- A.
  
  3.2A
- B.
  
  4.2A
- C.
  
  9.2A
- D.
  
  8.2A
2.

In the given figure, the resistors:
- A.
  
  6 Ω, 3 Ω and 9 Ω are in series
- B.
  
  9 Ω and 6 Ω are in parallel and the combination is in series with 3 ohm
- C.
  
  3 Ω, 6 Ω and 9 Ω are in parallel
- D.
  
  3 Ω and 6 Ω are in parallel and the combination is in series with 9 Ω
3.

Electric power is inversely proportional to:
- A.
  
  Resistance
- B.
  
  Voltage
- C.
  
  Current
- D.
  
  Temperature
4.

Three resistors of 1 Ω, 2 ohms,s, and 3 Ω are connected in parallel. The combined resistance of the three.
- A.
  
  Equals 3 Ω
- B.
  
  Less than 2Ω
- C.
  
  Equals 2 Ω
- D.
  
  Mor than 3 Ω
5.

Point to be kept in mind for verification of Ohm’s Law is:
- A.
  
  Ammeter and voltmeter should be connected in series
- B.
  
  Ammeter should be connected in series and voltmeter in parallel
- C.
  
  Ammeter should be connected in parallel and voltmeter in series
- D.
  
  Ammeter and voltmeter should be connected in parallel
6.

There is the wire of length I and cross-section A. Which of the given have the least resistance.
- A.
  
  Length doubled, Area halved
- B.
  
  Length tripled, Area doubled
- C.
  
  Length halved, Area doubled
- D.
  
  The original wire
7.

A car headlight bulb working on a 12 V car battery draws a current of 0.5 A. The resistance of the light bulb is:
- A.
  
  0.5 Ω
- B.
  
  B. 6 Ω
- C.
  
  12 Ω
- D.
  
  24Ω
8.

The resistance of a conductor depends directly on its ……… and ...... , inversely on its ………
9.

According to ohm's Law, the ............ across the ends of a resistor is directly proportional to the ……… flowing through it, provided its ........... remains constant.
10.

If the amount of electric charge passing through a conductor in 10 minutes is 300 C, the current flowing is:
- A.
  
  2A
- B.
  
  0.5A
- C.
  
  300A
- D.
  
  30A
11.

An electric fuse works on the:
- A.
  
  Chemical effect of current
- B.
  
  Magnetic effect of current
- C.
  
  Lightning effect of current
- D.
  
  Heating effect of current
12.

From the graph:
- A.
  
  Electric power
- B.
  
  Voltage
- C.
  
  Resistivity
- D.
  
  Resistance
13.

Calculate Resistance.
- A.
  
  150 Ω
- B.
  
  1.5 Ω
- C.
  
  11.5 Ω
- D.
  
  15 Ω
14.

If in the given arrangement, the three resistors are to be replaced by a single resistor. What will be the value of this resistor?
- A.
  
  6 Ω
- B.
  
  18 Ω
- C.
  
  12 Ω
- D.
  
  9Ω
15.

In An Electrical Circuit Three Incandescent Bulbs A, B And C Of Rating 40 W, 60 W And 100 W Respectively Are Connected In Parallel To An Electric Source. Which Of The Following Is Likely To Happen Regarding Their Brightness?
- A.
  
  All the three bulbs glow with same brightness
- B.
  
  Bulb A glows with more brightness than bulb B and C
- C.
  
  Bulb C glows with more brightness than A and B
- D.
  
  Bulb B glows with more brightness than A and B
16.

When a current 'I' flows through a resistance 'R' for time 't' the electrical energy spent is given by:
- A.
  
  I ² Rt
- B.
  
  IRt
- C.
  
  R ² It
- D.
  
  T ² RI
17.

Which one connected properly?
- A.
  
  Ii
- B.
  
  Iii
- C.
  
  I
- D.
  
  Iv
18.

The resistance of a conductor increases with- I: Increase in length II: Increase in volume III: Decrease in area iv: Temperature
- A.
  
  I&II
- B.
  
  I&III
- C.
  
  II&IV
- D.
  
  III&IV
19.

The rheostat is used in the circuit to :
- A.
  
  Increase the magnitude of current only
- B.
  
  Decrease the magnitude of current only
- C.
  
  increase or decrease the magnitude of current
- D.
  
  To increase resistance only
20.

The total resistance?
- A.
  
  9 Ω
- B.
  
  12.6 Ω
- C.
  
  12 Ω
- D.
  
  15.6 Ω
21.

The work done to Move a unit charge from one point to another point is called?
- A.
  
  Resistance
- B.
  
  Electric power
- C.
  
  Potential difference
- D.
  
  Electric current
22.

SI unit of electrical Potential Difference is Ampere (A).
- A.
  
  True
- B.
  
  False
23.

The commercial unit of electric power.
- A.
  
  Watt
- B.
  
  Kilo watt hour
- C.
  
  Kilo watt
- D.
  
  Joule
24.

We prefer parallel connection over series connection because:
- A.
  
  The voltage will not be same so that electrical devices work properly
- B.
  
  It offers less resistance and all the device work properly
- C.
  
  It offers more resistance if one device fails to work none of the device work
- D.
  
  It offers more resistance and more power is dissipated
25.

The relation between potential difference v and electrical current I given by:
- A.
  
  Ohm's law
- B.
  
  Joules law of heating
- C.
  
  Series connection
- D.
  
  Parallel connection
- E.
  
  None of the above