Chapter 4, PARALLEL CIRCUITS Video Solutions, Electricity 1: Devices, Circuits and Materials

01:28

Problem 1

Four 12-ohm resistors are connected in parallel. Calculate the total circuit resistance. __________________________

Mirza Aslam Beig

Numerade Educator

01:15

Four resistors are connected in parallel. The resistance values are 4 ohms, $8 \mathrm{ohms}, 12 \mathrm{ohms}$, and $16 \mathrm{ohms}$. Calculate the total circuit resistance. __________________________

Joanna Quigley

Numerade Educator

03:55

Problem 3

The resistors mentioned in problem 2 are connected in parallel across a 120-volt DC supply.
a. Calculate the current through each resistor.
b. Find the total current.
c. Find the total circuit resistance.
__________________________

Yaqub Khan

Numerade Educator

02:04

Problem 4

Determine the total resistance of a 10 -ohm resistor and a 30 -ohm resistor connected in parallel. __________________________

Lauren Shelton

Numerade Educator

Problem 5

If the circuit in problem 4 is connected to a 150-volt supply, find the current through each resistor. __________________________

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Problem 6

Find the total voltage, $\mathrm{E}_{\mathrm{T}}$, for the circuit shown in Figure 4-6.
FIGURE CANT COPY
Figure 4-6 Finding total voltages.
__________________________

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01:16

Problem 7

Find the current through $R_3$ in the circuit shown in Figure 4-7.
FIGURE CANT COPY
Figure 4-7 Finding current.
__________________________

Prabhu Ramji

Numerade Educator

02:35

Problem 8

For the circuit in problem 7, what is the value of $\mathrm{R}_3$ ?
__________________________

Vishal Gupta

Numerade Educator

02:29

Problem 9

Find the value of $R_2$ for the circuit shown in Figure 4-8 if the total circuit resistance is $7.5 \mathrm{ohms}$.
FIGURE CANT COPY
Figure 4-8 Finding resistance.
__________________________

Vishal Gupta

Numerade Educator

01:49

Problem 10

What is the total current in problem 9? __________________________

Vishal Gupta

Numerade Educator

09:06

Problem 11

The ammeters in the circuit in Figure 4-9 are indicating 4 amperes and 9 amperes as shown. Find the values of $\mathrm{R}_3$ and $\mathrm{R}_{\mathrm{T}}$.
FIGURE CANT COPY
Figure 4-9 Finding resistance.
__________________________

Yaqub Khan

Numerade Educator

02:02

Problem 12

For problem 11, what is the total voltage, $\mathrm{E}$ ?

Prem Bijarniya

Numerade Educator

02:38

Problem 13

Find $\mathrm{I}_{\mathrm{T}}$ for the circuit shown in Figure 4-10.
FIGURE CANT COPY
Figure 4-10 Finding current.
__________________________

Khoobchandra Agrawal

Numerade Educator

04:16

Problem 14

Using the circuit in Figure 4-10, what is the current through the 10 -ohm resistor?
__________________________

Ekaveera Kumar

Numerade Educator

02:47

Problem 15

In Figure 4-10, if the 10-ohm resistor is changed to 20-ohms, and $\mathrm{E}_{\mathrm{T}}$ is changed to 120 volts, find $\mathrm{I}_{\mathrm{T}}$. __________________________

Km Neeraj

Numerade Educator

01:58

Problem 16

In Figure 4-10, if there is a break in the 10 -ohm resistor causing an "open circuit" to occur in the 10 -ohm branch, what will be the total current, $\mathrm{I}_{\mathrm{T}}$ ?
__________________________

Sheh Lit Chang

University of Washington

Problem 1

Problem 2

Problem 3

Problem 4

Problem 5

Problem 6

Problem 7

Problem 8

Problem 9

Problem 10

Problem 11

Problem 12

Problem 13

Problem 14

Problem 15

Problem 16