Final answer:
The equivalent resistance of the given resistors in series is 6300 ohms. The equivalent resistance of the given resistors in parallel is 533.33 ohms.
Step-by-step explanation:
To find the equivalent resistance of resistors in series, you simply add up the individual resistances. In this case, the resistances are 800 ohms, 4 kilo-ohms (which is equivalent to 4000 ohms), and 1500 ohms. Adding these resistances gives us a total of:
800 ohms + 4000 ohms + 1500 ohms = 6300 ohms.
Therefore, the equivalent resistance of these resistors in series is 6300 ohms.
To find the equivalent resistance of resistors in parallel, you use the formula:
1 / Requiv = 1 / R₁ + 1 / R₂ + 1 / R3
Using this formula, we can find the equivalent resistance of the resistors in parallel:
1 / Requiv = 1 / 800 ohms + 1 / 4000 ohms + 1 / 1500 ohms
Calculating this expression gives us:
1 / Requiv = 0.00125 + 0.00025 + 0.00067 = 0.001875
Taking the reciprocal of both sides of the equation:
Requiv = 1 / 0.001875 = 533.33 ohms
Therefore, the equivalent resistance of these resistors in parallel is 533.33 ohms.