NMDCAT Phy Quiz//Current Electricity
Current Electricity Quiz
Test your knowledge of current electricity with our engaging quiz designed for students preparing for the NMDCAT exam. This quiz encompasses essential concepts in electricity, including resistivity, Ohm's law, and circuit analysis.
Key features of the quiz:
- 14 challenging multiple choice questions
- Instant feedback on your answers
- Track your progress and score
A wire of length L is and resistance R is cut into four equal pieces. Resistance of each piece would be:
R
2R
R/2
R/4
The graphical representation of Ohm's law is:
Curve line
Parabola
Straight line
Ellipse
Kirchhoff's 2nd rule is the manifestation the law of conservation of:
Charge
Momentum
Energy
All
Gives pure nature of material:
Resistivity
T co-efficient of resistance
Resistance
Resistivity & T co-efficient of resistance
The resistivity of material is p. If the area of cross-section of material is doubled and length is halved then the resistivity of material is:
P
2p
4p
P/4
The value of resistance depends upon:
Nature
Physical state
Dimension
All
1MWh=................J
3.6 x 10(3)
3.6 x 10(9)
3.6 X 10(6)
3.6 X 10(12)
Resistor 1 has twice the resistance of resistor 2.They are connected in parallel to a battery. The ratio of the thermal energy generation rate in 1 to that in 2 is:
1:4
1:1
1:2
2:1
A 10 ohm resistor has a constant current. If 1200 C of charge flow through it in 4 minutes. What is the value of the current:
3.0 A
11 A
5.0 A
15 A
A cylindrical copper rod has resistance R. It is reformed to twice its original length with no change of volume. Its new resistance is:
R
2R
4R
8R
Conductivity is :
The same as resistivity, it is just more convenient to use for for good conductors
Expressed in per ohm
Equal to 1/resistance
Expressed in (ohm meter)-1
The current in the 5.0 ohm resistor in the circuit shown is:
0.42 A
1.5 A
0.67 A
2.4 A
For an open circuit:
E=Vt
E>Vt
E
E=Vt+Ir
Find out the value of "Req" between points "A" & "B" :
5/4 ohm
4/3 ohm
100 ohm
Can't be calculated
The e.m.f of the cell in the following circuit is 9V.The reading on the high resistance voltmeter is 7.5 V. What is the current I ?
0.1 A
0.6 A
2 A
0.5 A
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