1.

A radio beacon transmits a frequency of 230 MHz. What is the wavelength of the signals?

2.

What is the power dissipation in a 68 ? resistive load, when a 110-V (peak-to-peak) sine wave is applied to the resistor?

3.

The resistivity of a material used to make a round 950 ? resistor is 53 ? per unit length. If the resistor has a radius of 0.16 in, what is it's length?

4.

A resistor with a temperature coefficient of 0.0045/ C has a resistance of 130 ? at 20 C. At what temperature will the resistance be 183 ??

5.

A dc voltage of 17 V is measured across a 133- ? resistor. What is the current flowing through the resistor?

6.

A dc voltage is applied to three resistors in parallel. The values of the resistors are 7.5, 12.5, and 14.8 k ?. If the total current flowing is 2.7 mA, what is the applied voltage?

7.

The configuration of the three resistors in Prob. 2.6 is changed from a parallel to a series connection. If the current flowing in the resistors is unchanged, what is the total voltage across the three resistors?

8.

What is the supply current I _t flowing in the circuit shown in Fig. 2.9 a?

Figure 2.9: Diagrams for ( a) Prob. 2.8 and ( b) Prob. 2.11.

9.

Calculate the voltage across each of the resistors in...