1. - The unit of voltage is _____________________.

2. - The unit of current is _____________________.

3. - The unit of resistance is ___________________.

4. - The voltage drop in a resistance is 2.0 V and the current that circulates through it is 5 Amp.  Calculate the resistance in ohms.
 

5. - Two resistances 3 W and 6 W are connected in parallel.  Calculate the equivalent resistance.
 
 

6. - Three resistances 5 W, 7 W and 9 W are connected in series.  Calculate the equivalent resistance.
 
 

7. - Calculate the resistance of 100 feet of copper wire (r = 10.5 cm/l/ft) and 0.01 inch in diameter.
 
 

8. - The resistance of a copper wire (a =  0.0023) at 32°F is 6.3 ohms ?.  What will be its resistance at 90°F?
 
 

9. - Calculate the current through resistance R1 in the shown circuit.

10. - For a sinusoidal wave, the maximum voltage is 155.6 volts.  Calculate the RMS voltage.
 

11. - The capacitance is measured in __________________.

12. - The inductance is measured in ___________________.

13. - The reactance is measured in ____________________.

14. - For V = 300 sin 628t and R = 10W, find

 a) V_max                             e) expression for i

 b) V_dc                               f) I_max

 c) V_RMS                          g) I_RMS

 d) frequency
 
 15). -In a series RCL circuit, R = 100 Ohm, L = 0.1 Henry, and C = 10 microfarad. Calculate the apparent, reactive, and average power for a voltage drop across the three elements given by v = 169 sin 377t.