1) An electron is released from rest at the negative plate of a parallel plate capacitor. If the distance across the plate is 5 mm and the potential difference across the plate is 5 V, with what velocity does the electron hit the positive plate?
(melectron = 9.1 x 10^(-31) kg, qe = 1.6 x 10^(-19) C)
a. 2.65 x 10^5 m/s
b. 5.30 x 10^6 m/s
c. 1.06 x 10^6 m/
d. 1.33 x 10^6 m/s
2 ) Three resistors connected in parallel have individual values of 4.0, 6.0 and 10.0 ohms,
respectively. If this combination is connected in series with a 12.0 V battery and a 2.0 ohm resistor, what is the current in the 10 ohm resistor?
a. 0.59 A
b. 1.0 A
c. 11.2
d.16.0 A
3 ) An electric toaster requires 1100 W at 110 Volts. What is the resistance of the heating coil?
a. 7.5 W
b. 9.0 W
c. 10.0 W
d. 11.0 W