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Problems with solutions
I.D
Level
Problem
Problem Topic
517
High school
Three resistors connected in parallel have individual values of 4.0 , 6.0 and 10.0 ohm respectively . If this combination is connected in series with a 12-V battery and a 2.0 ohm resistor , what is the current in the 10 ohm resistor ?
a. 0.59 A
b. 1.0 A
c. 11 A
d. 16 A
. . . continues Current & Electricity
518
High school
Two resistors of values 6.0 and 12.0 ohm are connected in parallel . This combination in turn is hooked in series with a 2.0 ohm resistor and a 24 V battery . What is the current in the 2 ohm resistor ?
a. 2.0 A
b. 4.0 A
c. 6.0 A
d. 12 A
. . . continues Current & Electricity
519
High school
Three resistors , each with resistance R1, are in parallel in a circuit . They are replaced by one equivalent resistor , R. Compare this resistor to the first resistor of the initial circuit . Which of the following statements is true ?
a. The current through R equals the current through R1
b. The voltage across R equals the voltage acr . . . continues
Current & Electricity
520
High school
As per the figure at “click here” how much power is being dissipated by one of the 10 ohm resistor ?
a. 24 W
b. 9.6 W
c. 16 W
d. 6.4 W
. . . continues Current & Electricity
521
High school
Consider the circuit shown in the figure at “click here” . What power is dissipated by the entire circuit ?
a. 14W
b. 28 W
c. 52 W
d. 112 W
. . . continues Current & Electricity
522
High school
As per the figure at “click here” hat is the current through the 2 ohm resistor ?
a. 1.0 A
b. 0.50 A
c. 1.5 A
d. 2.0 A
. . . continues Current & Electricity
523
High school
As per the figure at “click here” , what is the potential difference between points a and b ?
a. 6 V
b. 8 V
c. 12 V
d. 24 V
. . . continues Current & Electricity
524
High school
As per the figure at “click here” , what is the current flowing through the 4 ohm resistor ?
a. 1 A
b. 2 A
c. 3 A
d. 4 A
. . . continues Current & Electricity
525
High school
If one double the emf in a circuit and double the resistance in the circuit at the same time. What happens to the currents through the resistors ? Assume there are only emfs and resistors in the circuit .
a. They stay the same
b. They quadruple
c. They double
d. They halve
. . . continues
Current & Electricity
526
High school
As per the figure at “click here” A 10 V emf battery is connected in series with the following : a 2 microF capacitor , a 2ohm resistor , an ammeter , and a switch, initially open; a voltmeter is connected in parallel across the capacitor . At the instant the switch is closed, what are the current and capacitor voltage reading , respectiv . . . continues Current & Electricity
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