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Published on: 05/12/2020
10th Standard Science Electricity English Medium Free Online Test 1 Mark Questions with Answer Key 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.
The electric current in a closed circuit always flows from the ________ terminal of the electric cell to ___________ terminal.
-ve to +ve
+ve to -ve
+ve to +ve
none
2.
A 110 W, 220 V bulb draws a current.
2 A
440 A
0.5 A
5.5 A
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.
Which of following relation is correct for voltage, work done and charge?
V = W x Q
W = V x Q
V = Q 1W
W = V / Q
5.
Why are copper wires used as connecting wires?
Low resistivity
Low conductivity
High Resistivity
Both A and B
6.
7.
If two unequal resistors connected in parallel then.
The voltage is same in both resistor
The current is same in both resistor
The voltage is larger in one of the resistor
The current is large in one of the resistor
8.
Why battery is used in the circuit?
Measure Current
Maintain a potential difference
Oppose the current
Measure potential
9.
Kilowatt - hour is the unit of
Power
Potential difference
Force
Electrical energy
10.
Give the name of components which is designed to oppose the flow of current.
Capacitor
Resistors
Fuse wire
Inductor
11.
The resistance of material depends on.
Temperature
Length of conductor
Area of cross-section
All the above
12.
A parallel circuit consist of three resistors with values of 430, 210 and 100. The total resistance is
0.017 ohm
58.82 ohm
58.82 kilo ohm
None of the above
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.
Kilowatt hour is the unit of
resistivity
conductivity
electrical energy
electrical power
15.
SI unit of resistance is
mho
joule
ohm
ohm meter
1.
(b)
+ve to -ve
2.
(c)
0.5 A
3.
(a)
heating effect of current
4.
(b)
W = V x Q
5.
(a)
Low resistivity
6.
(a)
7.
(a)
The voltage is same in both resistor
8.
(b)
Maintain a potential difference
9.
(d)
Electrical energy
10.
(b)
Resistors
11.
(d)
All the above
12.
(b)
58.82 ohm
13.
(a)
A switch is closed
14.
(c)
electrical energy
15.
(c)
ohm
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Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
