The load across a 12 V battery consists of
a series combination of three resistors 21
ohm, 22 ohm, and 56 ohm.
What is the total resistance of the load?
No matter what the voltage is, add the resistances for the total series resistance.
To find the total resistance of a series combination of resistors, you simply need to add up the individual resistances.
In this case, you have three resistors with values of 21 ohm, 22 ohm, and 56 ohm. To find the total resistance (R_total), you can use the formula:
R_total = R1 + R2 + R3
Where R1, R2, and R3 are the values of the individual resistors.
Substituting the given values into the formula:
R_total = 21 ohm + 22 ohm + 56 ohm = 99 ohm
Therefore, the total resistance of the load is 99 ohm.