Direct-Current Circuits
60 videos • 66,130 views • by WNY Tutor
1
Find the current in the 12-Ω resistor in the figure below.
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2
Consider a series RC circuit as in the figure below for which R = 1.00 MΩ, C = 5.00 µF, and ε = 30.0
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3
The ammeter shown in the figure below reads 2.00 A. Find I1, I2, and ε.
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4
Three 60.0-W, 120-V lightbulbs are connected across a 120-V power source, as shown in Figure P18.48.
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5
Find the equivalent resistance between points a and b
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6
The resistance between terminals a and b in the figure is 75 Ω. If the resistors labeled R have the
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7
a battery with emf=6v and no internal resistance
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8
(a) You need a 45-Ω resistor, but the stockroom has only 20-Ω and 50-Ω resistors. How can the desire
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9
For the circuit shown in the figure, calculate (a) the current in the 2.00-Ω resistor and (b) the po
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10
The current in a single-loop circuit with one resistance R is 5.0 A. When an additional resistance o
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11
Consider the combination of resistors shown in the figure below. (a) Find the equivalent resistance
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12
Two resistors connected in series have an equivalent resistance of 690 Ω. When they are connected in
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13
Four resistors are connected to a battery as shown in the figure. (a) Determine the potential differ
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14
Below is a circuit with four branches. The currents I1 and I2, and the emf ε1 are unknown. The curre
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15
In the circuit of the figure below determine the current
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16
In the circuit of the figure below, the current I1 is 3.0 A and the values of ε and R are unknown.
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17
A dead battery is charged by connecting it to the live battery of another car with jumper cables. De
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18
When two unknown resistors are connected in series with a battery, the battery delivers 225 W
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19
A charged capacitor is connected to a resistor and a switch as in the figure below. The circuit has
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20
Consider a series RC circuit for which R = 1.0 MΩ, C = 5.0 µF, and ε = 30 V as in the figure.
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21
Find the potential difference across each resistor in the figure below.
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22
Find the three currents in figure b, where R = 2.8 Ω. (Note that the direction of one current may ha
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23
Calculate the potential difference between points a and b in the figure
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24
The given pair of capacitors in the figure below is fully charged
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25
A 2.00-nf capacitor with an initial charge of
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26
Consider the following circuit diagram
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27
In the following circuit, R1 = 12 Ω, R2 = 18 Ω, and R3 = 24 Ω
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28
first the switch is closed a long time
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29
Using kirchhoff's rules find the current in each resistor shown in figure
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30
consider the combination of resistors shown in the figure below
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31
a battery having an emf of 9.00 v delivers 117
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32
Four resistors are connected to a battery as shown in the figure below
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33
Thermal energy is to be generated in a 0.10 Ω resistor at the rate of 10 W
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34
Find the current in a 8.00 resistor connected to a battery
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35
Consider the following parameters for the RC circuit in a defibrillator
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36
For the system of capacitors shown in figure
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37
Consider the circuit shown in the figure below
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38
Consider the circuit shown in the figure below
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39
A wire of resistance 5 ohm is connected to a battery whose emf
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40
In the figure circuit section ab absorbs energy
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41
When resistors 1 and 2 are connected in series
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42
Find the equivalent resistance of the circuit in the figure
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43
What are the expected readings of the ammeter and voltmeter
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44
Can the circuit shown be reduced to a single resistor
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45
Can the circuit shown be reduced to a single resistor
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46
In the figure the ideal batteries have emfs
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47
In the figure what value must r have if the current in the circuit is to be
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48
Switch s is closed at time t=0
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49
The figure shows the circuit of a flashing lamp
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50
Experts On How Facebook And Twitter May Change After Trump Bans
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51
Two 1.50 v batteries with their positive
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52
in the figure the current in resistance 6 is i6
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53
In the given figure r1=5 ohm r2=10 ohm
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54
The circuit in the figure shows a capacitor, two ideal batteries
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55
In the figure r1=10.0 kohm, r2=15.0kohm
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56
The resistances in figure a and figure b are all
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57
In the figure E1=6V, E2=12V, R1=100
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58
In an rc series circuit e=12v
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59
A capacitor with initial charge q0 is discharged through a resistor
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60
A 1.0 mF capacitor with an initial stored energy
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