Chapter 29, Problem 48A

To determine

To complete: the given problem so that its solution requires the use of a diode.

Answer to Problem 48A

150 A current is produced.

Explanation of Solution

Given data:

The provided phrase is as follows:

“A $3.0\text{-V}$ alternating current source is connected to a $450\text{-W}$ resistor…”

  $\text{Voltage}=3.0\text{-V}$

  $\text{Power}=450\text{-W}$

Formula used:

Power is calculated as the product of voltage and current.

  $\begin{array}{l}\text{Power = Voltage}\times \text{Current}\\ \text{Current}=\frac{\text{Power}}{\text{Voltage}}\end{array}$

Calculation:

The given problem can be completed by finding the current passed through the diode.

“A $3.0\text{-V}$ alternating current source is connected to a $450\text{-W}$ resistor…”

According to the written problem, current can be calculated by substituting the values of voltage and power in the above formula.

  $\begin{array}{l}\text{Current}=\frac{\text{Power}}{\text{Voltage}}\\ =\frac{450}{3}\\ =150\text{ A}\end{array}$

Conclusion:

Thus, the 150 A current passes when a $3.0\text{-V}$ alternating current source is connected to a $450\text{-W}$ resistor.