Shubham Jha - Class 10
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7 year experience in Training 9th & 10th grade students with special creative techniques.
A memory coach & a passionate educator by choice.
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If a person has five resistors each of value Ω, then the maximum resistance he can obtain by connecting them Β‘s:
Anonymous Quiz
28%
1ohm
48%
5ohm
15%
10ohm
9%
25ohm
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The resistance of a resistor is reduced to half of its initial value. In doing so, if other parameters of the circuit remain unchanged, the heating effects in the resistor will become:
Anonymous Quiz
40%
Two times
35%
Four time
20%
Halved
4%
None
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Two bulbs of 100 Ω and 40 Ω are connected in series. The current through the 100 Ω bulb is 1 A. The current through the 40 Ω bulb will be:
Anonymous Quiz
33%
1a
30%
2a
21%
3a
15%
4a
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When a 4 V battery is connected across an unknown resistor there is a current of 100 mA in the circuit. The value of the resistance of the resistor is:
Anonymous Quiz
32%
4ohm
36%
0.4ohm
26%
40ohm
7%
4.9ohm
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if the resistance of a certain copper wire is 1 Ω, then the resistance of a similar nichrome wire will be about:
Anonymous Quiz
34%
20Ohm
40%
40 ohm
19%
60 ohm
7%
80 ohm
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Unit test kab hai?
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Which of the following increase in muscle cell when they are lacking in oxygen
Anonymous Quiz
20%
Co2
21%
Lactoses
56%
Latic acid
4%
Uric acid
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The breathing and respiration in woody steam of a plant take place through
Anonymous Quiz
28%
Root hair
24%
Lenticles
20%
Closed stomata
27%
Open stomata
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In cockroach air enters the body through
Anonymous Quiz
19%
Lungs
21%
Gills
38%
Spiracle
22%
Skin
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Example of semiconductor
Anonymous Quiz
40%
Aluminium wire
39%
Sim card
17%
Wood
4%
None
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