NMDCAT Phy Quiz : Current Electricity
NMDCAT Physics Quiz: Current Electricity
Test your knowledge of Current Electricity with this comprehensive quiz designed for NMDCAT aspirants. This quiz features 25 carefully crafted multiple-choice questions that cover essential concepts in current electricity, resistance, and Ohm's Law.
Whether you're preparing for an exam or just want to brush up on your physics knowledge, this quiz is perfect for you. Here are some key features:
- Multiple-choice questions
- Instant feedback on answers
- Covers a range of topics
1-A component which provides resistance is called
Heat
Energy
Product
Resistor
2-To control electric current in a circuit, there is used a
Resistor
Insulator
Conductor
Wire
3-If more resistors are added in a series circuit the resistance will be
Increased
Decreased
Equal
Constant
4-The resistor of a variable resistor can be changed hence it is called
Ammeter
Rheostat
Fixed resistor
Variable resistor
5-In a parallel circuit the resistance decreases with increase in number of
Resistors
Bulbs
Circuit
Battery
6-If a current of 5 Amperes flows through the conductor. The number of electrons per second will is
1.6 x 10^-19
3.12 x 10^19
4 x 10^19
7.68 x 10^20
7-Ohm’s law is true for
Metallic conductors at low temperature
Metallic conductors at high temperature
For electrolytes, when current passes through them
For diode when current flows
8-An example of non-ohmic resistance is
Diode
Tungsten wire
Carbon resistance
Copper wire
9-In a conductor, if 6-coulomb charge flows for 2 seconds. The value of electric current will be
3 amperes
3 volts
2 amperes
2 volts
10-An EMF source of 8.0 V is connected to a purely resistive electrical appliance. An electric current of 2.0 A flows through it. What is the resistance offered by the electrical appliances?
4 ohm
6 ohm
2 ohm
3 ohm
11-A potential difference of 10 V is applied across a conductor whose resistance is 2.5 ohm. What is the value of current flowing through it?
4 amperes
2 amperes
6 amperes
10 amperes
12-If the conductor resistance is 50 ohm and the current passing through it is 5 A. What is the value of potential difference?
150 V
250 V
50 V
15 V
13-When the length of the conductor is doubled and the area of cross-section remains the same then its resistance
Remains the same
Will be doubled
Will become half
Will increase by four times
14-The current passing through a resistor in a circuit is 1 A when the voltage across the same resistor is 10 V. What is the value of current when the voltage across the resistor is 8 V
0.8 A
8 A
80 A
18 A
15-Two resistors R1 and R2 with resistance 5 ohms and 10 ohms respectively are connected in series. The voltage across R1 is 4 V. What will be the value of current across R2.
0.8 A
8 A
80 A
18 A
16-What is the current in the circuit below:
0.3 A
0.2 A
0.1 A
None of these
17-Equivalent resistance across the points a and b is:
2 ohm
3/5 ohm
5 ohm
1/2 ohm
18-The potential difference across R1 is:
30 V
10 V
15 V
20 V
19-What is the equivalent resistance of the circuit?
6/25 ohm
25/6 ohm
25/3 ohm
3/25 ohm
20-Figure shows a network carrying currents.The current I in the circuit will be:
-3 A
3 A
13 A
23 A
21-Allof following statements are incorrect except:
Silver is the best conductor followed by aluminimun and then copper
Copper is the best conductor followed by silver and then aluminium
Copper is the best conductor followed by aluminium and then silver
Silver is the best conductor followed by copper and aluminium
22-A piece of certain material has resistance of 100 ohm at 0 *C and 10 0hm at 18 *C. The material is of:
Carbon
Germanium
Silicon
None of these
23-Resistivity of platinum in ohm cm is:
1.1 x 10^-8
1.1 x 10^-5
1.1 x 10^-7
1.1 x 10^-6
24-One million electrons are passing through a cross section of a conductor in one millisecond. The current through the conductor is
0.16 nA
1.6 X 10^-11 A
1.6 micro A
16 X 10^-12 A
25-A 100 W ,200 V bulb is connected to a 160 V supply. The actual power consumption would be
64 W
72 W
100 W
90 W
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