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Published on: 05/12/2020
10th Standard Science Electricity English Medium Free Online Test 1 Mark Questions 2020-2021
Download Tamil Nadu 10th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
2.
The number of electrons in one coulomb of charge is
1.6 x 1019
6.25 x 1018
1.13 x 1011
8.85 x 1012
3.
Electric iron box and electric heater works on the principle of
heating effect of current
heating effect of voltage
heating effect of power
heating effect of emf
4.
How many terminals an electric bulb consist of?
2
4
3
1
5.
Conductivity is the ________ of resistivity.
opposite
reciprocal
equal
none of the above
6.
All good conductors have high
Resistance
Specific resistance
Voltage
None of the above
7.
If there are two bulbs i.e. 150W bulb and 60W bulb so which has more resistance?
60 W
150 W
Both a and b
None of the above
8.
If resistance decreases, then current will
increase
double
decrease
constant
9.
The relation between potential difference (V) and current (I) was discovered by:
Volt
Ohm
Newton
Ampere
10.
The amount of work done in joules when one unit electric charges moves from one point to another point in an electric circuit is called.
Resistance
Potential difference
Current
charge
11.
According to Ohm's law if voltage increase and resistance stays the same
Resistance decreases
Current increases
Current remains the same
Current decreases
12.
The S1 unit of power is
joule
ampere
Watt
ohm
13.
When will be the current flow in a circuit?
A switch is closed
A switch is opened
Switch is either open or closed
None of the above
14.
In a simple circuit, why does the bulb glow when you close the switch?
The switch produces electricity
Closing the switch completes the circuit.
Closing the switch breaks the circuit.
The bulb is getting charged.
15.
Which of the following is correct?
Rate of change of charge is electrical power
Rate of change of charge is current.
Rate of change of energy is current.
Rate of change of current is charge.
1.
(c)
2.
(b)
6.25 x 1018
3.
(a)
heating effect of current
4.
(a)
2
5.
(b)
reciprocal
6.
(d)
None of the above
7.
(a)
60 W
8.
(a)
increase
9.
(b)
Ohm
10.
(b)
Potential difference
11.
(b)
Current increases
12.
(c)
Watt
13.
(a)
A switch is closed
14.
(b)
Closing the switch completes the circuit.
15.
(b)
Rate of change of charge is current.
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Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
