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Worksheets24EE2081 - Quiz1
Total questions: 15
Worksheet time: 8mins
If the frequency of an AC Power Supply is 50Hz, it's Time Period is ______
20ms
10ms
1ms
50ms
A node is junction of two or more branches of an electrical network.
True
False
Which of the following equation is correct regarding the following circuit diagram?
I. At node 'a' ,i1 + i4 = i2
2. At node 'c', i5 = i6 + i7
3. At node 'b', i2 + i3 = i5
Only I
Only 1 & 2
Only 1 & 3
1, 2 & 3
A voltage of 6 V causes a current of 0.6 A to flow in a conductor. Calculate
the resistance of the conductor
10 ohms
5 ohms
6 ohms
3.6 ohms
What is the unit of electrical resistance?
Ohm
Volt
Ampere
Watt
In a series circuit, the total resistance is equal to ______
The sum of individual resistances
The product of individual resistances
The average of individual resistances
The maximum of individual resistances
Which of the following statements is true regarding Kirchhoff's Voltage Law?
I. The sum of the voltages around any closed loop in a circuit is zero.
II. The total current entering a junction must equal the total current leaving the junction.
Only I
Only II
Both I and II
Neither I nor II
A current of 3 A flows through a 10 Ω resistor. Find: (a) the power dissipated by the resistor; (b) the energy dissipated in 5 hours.
90W and 450Wh
90W and 500Wh
30W and 450Wh
30W and 500Wh
The lamps in a set of Christmas tree lights are connected in series; if there are
20 lamps and each lamp has a resistance of 25 Ω, calculate the equivalent resistance of the set of
lamps, and hence calculate the current taken from a 230 V supply.
0.46A
1A
1.46A
2A
In a parallel-configured circuit, the current value is:
high
low
zero
infinity
When 5, 10, and 15 resistors are connected in series with a 12V voltage source, what is the value voltage across resistor 5?
2V
5V
10V
12V
If resistor colour coding is given by ROY what is its value
230k ohms
230 ohms
23k ohms
23 ohms
If two bulbs are connected in parallel and one bulb blows out, what happens to the other bulb?
a) The other bulb blows out as well
b) The other bulb continues to glow with the same brightness
c) The other bulb glows with increased brightness
d) The other bulb stops glowing
The voltage across the open circuit is?
a) 100V
b) Infinity
c) 90V
d) 0V
What does emf stand for?
Electromotive force
Electronic magnetic force
Electromagnetic force
Electromated force
