WorksheetsBomb Diffusion - Quiz
Total questions: 30
Worksheet time: 30mins
What is Ohm's Law?
V = R / I
V = I + R
V = I * R
V = I / R
Calculate the current flowing through a resistor of 10 ohms with a voltage of 5 volts applied.
0.5 amps
1 amp
2 amps
0.2 amps
What is the formula for total resistance in a series circuit?
R_total = R1 * R2 * R3 * ... * Rn
R_total = R1 - R2 - R3 - ... - Rn
R_total = R1 + R2 + R3 + ... + Rn
R_total = 1/(1/R1 + 1/R2 + 1/R3 + ... + 1/Rn)
If two resistors of 4 ohms and 6 ohms are in series, what is the total resistance?
10 ohms
2 ohms
8 ohms
12 ohms
Calculate the equivalent resistance between A and B.
60 ohm
15 ohm
12 ohm
48 ohm
What is the voltage across a 5-ohm resistor in a series circuit with a total voltage of 20 volts?
10 volts
20 volts
25 volts
15 volts
In a parallel circuit, how does the total current compare to individual currents?
The total current is equal to the largest individual current.
The total current is less than the smallest individual current.
The total current is independent of the individual currents.
The total current is equal to the sum of the individual currents.
1. The value of the 3 resistances when connected in star connection is____
2.32ohm, 1.22ohm, 4.54ohm
3.55ohm, 4.33ohm, 5.67ohm
2.78ohm, 1.67ohm, 0.83ohm
4.53ohm, 6.66ohm, 1.23ohm
If two resistors of 3 ohms and 6 ohms are in parallel, what is the total resistance?
1 ohm
2 ohms
4 ohms
3 ohms
Under the condition of maximum power efficiency is?
100%
30%
0%
50%
Calculate the power in the 20 ohm resistance.
2000kW
2kW
200kW
2W
What is the formula of Kinetic Energy.
KE = m * v^2 / 2
KE = 1/2 *m*v^2
KE = 1/2 * m * v
KE = m * v
What is the work done when a force of 10 N moves an object 5 meters?
40 J
30 J
25 J
50 J
Find the value of voltage once source transformation is applied to the circuit.
10V
30V
50V
70V
State Kirchhoff's Current Law.
The total current in a circuit is always zero.
The current is constant throughout a circuit regardless of junctions.
The total current entering a junction equals the total current leaving the junction.
The total voltage entering a junction equals the total voltage leaving the junction.
Superposition theorem does not work for ____
Current
Voltage
Power
Work for all
If a circuit has a power of 60 watts and a voltage of 120 volts, what is the current?
0.5 amps
1 amp
0.25 amps
2 amps
What is the formula for calculating capacitance in a capacitor?
Capacitance (C) = Charge (Q) / Voltage (V)
Capacitance (C) = Voltage (V) / Current (I)
Capacitance (C) = Power (P) / Voltage (V)
Capacitance (C) = Resistance (R) / Current (I)
Calculate the charge in the 2F capacitor.
200C
100C
300C
400C
What is the formula for capacitance in a parallel plate capacitor?
C = ε * (A + d)
C = (A/d) * ε
C = ε₀ * (A/d)
C = ε₀ * (d/A)
What is the conduction current when a capacitor is fully charged?
Infinity
Zero
100A
1000A
The function of a diode in a rectifier circuit is to:
Amplify signals
Store energy
Allow current in one direction
Convert AC to DC
What is the frequency of an AC signal if its time period is 0.02 seconds?
20Hz
50Hz
100Hz
200Hz
Find the capacitance of a multi plate capacitor whose actual permittivity= 5F/m, n=3, A=4m2and d=2m.
10F
20F
30F
40F
Calculate the power consumed by a device that draws a current of 3 amps at a voltage of 12 volts.
36 watts
24 watts
30 watts
12 watts
Find the current in the Circuit
1A
2A
3A
4A
A 250V bulb passes a current of 0.3A. Calculate the power in the lamp?
75W
50W
25W
90W
Which of the following will happen in a transformer when the number of secondary turns is less than the number of primary turns?
The voltage gets stepped up
The voltage gets stepped down
The power gets stepped up
The power gets stepped down
Calculate the voltage across the 10 ohm resistor.
12V
4V
10V
0V
What is the magnetic field outside a solenoid?
Infinity
Half the value of the field inside
Double the value of the field inside
Zero
