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Worksheets19EEE15-Quiz1
Total questions: 20
Worksheet time: 19mins
Find the current in the circuit.
1 A
2 A
3 A
4 A
If there are two bulbs connected in series and one blows out, what happens to the other bulb?
The other bulb continues to glow with the same brightness
The other bulb glows with increased brightness
The other bulb stops glowing
The other bulb also burns out
Many resistors connected in series will?
Divide the voltage proportionally among all the resistors
Divide the current proportionally
Increase the source voltage in proportion to the values of the resistors
Reduce the power to zero
In a series circuit, which of the parameters remain constant across all circuit elements such as resistor, capacitor and inductor etc?
Voltage
Current
Both voltage and current
Neither voltage nor current
If two bulbs are connected in parallel and one bulb blows out, what happens to the other bulb?
The other bulb blows out as well
The other bulb continues to glow with the same brightness
The other bulb glows with increased brightness
The other bulb stops glowing
Calculate the current across the 20 ohm resistor.
10A
20A
6.67A
36.67A
The voltage across the open circuit is?
100V
Infinity
90V
0V
The total resistance between A and B are?
20 ohm
5 ohm
80 ohm
0 ohm
A 250V bulb passes a current of 0.3A. Calculate the power in the lamp.
75W
50W
25W
90W
Calculate the work done in a resistor of 20 ohm carrying 5A of current in 3 hours.
1.5J
15J
1.5kWh
15kWh
Out of the following, which one is not a source of electrical energy?
Solar cell
Battery
Potentiometer
Generator
Which among the following is an expression for energy?
V2It
V2Rt
V2t/R
V2t2/R
Materials which easily allow the passage of electric current are known as _____
Insulators
Conductors
Dielectrics
Semi-conductors
A wire of length 2m and another wire of length 5m are made up of the same material and have the same area of cross section, which wire has higher resistance?
Both have equal resistance
The 2m wire has higher resistance
The 5m wire has higher resistance
The value of resistance cannot be determined from the given data
A wire has the same resistance as the one given in the figure. Calculate its resistivity if the length of the wire is 10m and its area of cross section is 2m.
16 ohm-metre
8 ohm-metre
16 kilo ohm-metre
8 kilo ohm-metre
How much voltage is needed to produce 2.5 A of current through a 200 resistor?
50 V
500 V
80 V
8 V
Materials with lots of free electrons are called
conductors
insulators
semiconductors
filters
The maximum resistance value for a brown, red, yellow, gold resistor is
126,000 Ω
126,600 Ω
114,000 Ω
132,000 Ω
Two coils connected in parallel across 100V DC supply, power dissipated in one coil is 600W, calculate resistance of each coil.
16.67 ohm and 25 ohm
13.67 ohm and 10 ohm
10 ohm and 20 ohm
15.67 ohm and 11.65 ohm
If temperature increases in a conductor, Resistance also increases its called
Positive temperature coefficient
Negative temperature coefficient
Both of the above
None of the above
