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WorksheetsDC Parallel Circuits (Part 1)
Total questions: 11
Worksheet time: 8mins
In a parallel circuit the supply current is equal to the?
a. total power multiplied by the supply voltage
b. sum of the branch currents
c. supply voltage divided by the resistance of any one branch
d. ratio of the branch currents
Connecting resistors in parallel produces the same general effect as ?
a. increasing the temperature of a metallic conductor
b. increasing the cross-sectional area of a conductor
c. increasing the length of a conductor
d. decreasing the conductance of a conductor.
When three 10Ω resistors are connected in parallel,
the voltage drop across each is ?
a. one third of the supply voltage
b. supply voltage divided by 10 .
c. equal to the supply voltage
d. supply voltage divided by 30.
The lowest value of resistance in any parallel combination of resistors is always ?
a. equal to the equivalent resistance of the combination.
b. less than the equivalent resistance of the combination.
c. dependent on voltage and current for its resistance.
d. greater than the equivalent resistance of the combination.
Twenty five resistors each with a resistance of 100 Ω are connected in parallel with each other. The equivalent resistance of the combination is ?
100 Ohms
2500 Ohms
4 Ohms
25 Ohms
A parallel circuit is defined as a circuit with ?
a. more than one resistor
b. more than one current path
c. only one current path
d. more than one supply voltage
If an extra parallel connected resistor is added to a circuit, the equivalent resistance of the circuit will ?
remain the same
decrease
increase
cause the voltage to change
The voltage in a parallel circuit ?
a. is the same in all parts of the circuit
b. decreases through the circuit from resistor to resistor
c. greater than the supply voltage
d. increases with increase resistance.
If one resistor in a parallel circuit of three resistors becomes short circuited,
the circuit current will ?
a. remain constant
b. decrease to zero
c. decrease by the value of current in the shorted branch
d. increase to a large value
The power dissipation of a parallel circuit is equal to the ?
a. sum of the power dissipation of each branch
b. product of the power dissipation of each branch
of each branch c. difference of the power dissipation of each branch
d. power dissipation of each branch divided by the number of branches
Determine the equivalent resistance for the circuit shown?
490 Ohms
51.16 Ohms
150 Ohms
220 Ohms
