A circuit contains twodevices that are connected in parallel. If the resistance of one of these devices is 12 ohms and the resistance of the other devices is 4 ohms, the total resistance of the two devices is?
1/R = 1/R1 + 1/R2
You have R1 and R2. Solve for R.
It will be less than the least R in the parallel circuits.
the magnitude of the voltage induce in a conductor moving through a stationary magnetic field depends on the
To find the total resistance of two devices connected in parallel, you can use the formula:
1/R = 1/R1 + 1/R2
In this case, one device has a resistance of 12 ohms (R1) and the other device has a resistance of 4 ohms (R2).
Substituting the values into the formula:
1/R = 1/12 + 1/4
To solve for R, you can add the fractions on the right side of the equation:
1/R = (1/12 + 1/4)
= (1/12 + 3/12)
= 4/12
= 1/3
To isolate R, you can take the reciprocal of both sides of the equation:
R = 1/(1/3)
= 3/1
= 3 ohms
Therefore, the total resistance of the two devices in the circuit is 3 ohms.