Question

three resistors from the ece110 kit are arranged in the resistor network as shown below. assume the kit includes resistor values of 4.7 , 10 , 47 , 100 , 220 , 330 , 470 , 680 , 1000 , 2200 , 3300 , and 4700 . if the equivalent resistance is 845 , which resistors were used? also, if all resistors are rated 1/4 watt, what power is being dissipated by the resistive network (the resistive network's effective power rating) at the point one or more elements reach their individual rating?

Answer 1

To find the resistors used in the circuit with an equivalent resistance of 845, a combination of 680Ω + 100Ω + 47Ω + 10Ω + 4.7Ω can be used. The maximum power dissipated by the resistive network is 1/4 watt.

In this circuit, the equivalent resistance is 845. To determine which resistors were used, we can start by finding the closest possible combination of resistors that add up to 845. One possible combination is: 680Ω + 100Ω + 47Ω + 10Ω + 4.7Ω.

To calculate the power being dissipated by the resistive network, we can use the formula P = I^2 * R, where P is the power, I is the current, and R is the resistance. Since we don't have information about the current, we cannot determine the exact power. However, we know that all resistors are rated 1/4 watt, so the maximum power that can be dissipated by the network is 1/4 watt.