1. If the electric potential in space is given by the function V(x, y) = [0.5x³3 – 4y²] Volts, what is the Electric field at the point (x,y)=(2, 3)? %3D a. E = [41 – 36j ](V/m) b. E = [-6i + 24j](V/m) c. E = 24.7 (V/m) d. E = [-40î – 40f](V /m)

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1. If the electric potential in space is given by the function V(x, y) = [0.5x3 - 4y?] Volts, what is the Electric
field at the point (x,y)=(2,3)?
a. E = [41 – 36j ](V/m)
b. E = [-6i + 24f](V/m)
c. E = 24.7 (V/m)
d. E = [-40î – 40j](V/m)
%3D
%3D
i,
2. Given the partial circuit below, determine the magnitude and direction of the
currents i and iz.
a. i= 1.1A left, i2=0.2A right
b. i= 0.8A right, iz=0.4A right
c. i= 0.9A right, iz-0.4A right
d. i= 0.2A left, iz=0.2A left
e. i= 0.4A right, i2-0.4A left
0.7A
0.SA
0.4A
3. A circuit consisting of 5 identical light bulbs, a battery and a switch is shown.
When the switch, S, is closed, what can we say about the brightness of the bulbs?
Bulb 1
Bulb 2
a. Bulb 4 goes out
b. Bulb 2 gets dimmer
c. Bulb 4 is brighter than bulb 3
d. Bulb 4 is brighter than bulb 2
e. Bulb 3 gets brighter
Voat
Switch
Bulb 5
Bulb 4
4. In the circuit to the right, the four resistors all have a resistance of 22 and the battery supplies a potential
difference of Vbat%3D2.5V. If the battery current (Ibat) is A, what is the electric potential at point P?
a. Vp= 2.5V
b. Vp= 1.5V
c. Vp= 1.0V
d. Vp= -2.0V
e. Vp= -0.5V
R.
5. You have a square parallel plate capacitor with capacitance C. The plates are separated by a distance d and
each square plate has a side length of L. If you half the separation distance to 0.5d and doubled the side
length to 2L, what is the new capacitance?
а. 8C
b. 20
C. 0.5C
d. 4C
е. 0.25C
0.6A
0.1A
Bulb 3
Transcribed Image Text:1. If the electric potential in space is given by the function V(x, y) = [0.5x3 - 4y?] Volts, what is the Electric field at the point (x,y)=(2,3)? a. E = [41 – 36j ](V/m) b. E = [-6i + 24f](V/m) c. E = 24.7 (V/m) d. E = [-40î – 40j](V/m) %3D %3D i, 2. Given the partial circuit below, determine the magnitude and direction of the currents i and iz. a. i= 1.1A left, i2=0.2A right b. i= 0.8A right, iz=0.4A right c. i= 0.9A right, iz-0.4A right d. i= 0.2A left, iz=0.2A left e. i= 0.4A right, i2-0.4A left 0.7A 0.SA 0.4A 3. A circuit consisting of 5 identical light bulbs, a battery and a switch is shown. When the switch, S, is closed, what can we say about the brightness of the bulbs? Bulb 1 Bulb 2 a. Bulb 4 goes out b. Bulb 2 gets dimmer c. Bulb 4 is brighter than bulb 3 d. Bulb 4 is brighter than bulb 2 e. Bulb 3 gets brighter Voat Switch Bulb 5 Bulb 4 4. In the circuit to the right, the four resistors all have a resistance of 22 and the battery supplies a potential difference of Vbat%3D2.5V. If the battery current (Ibat) is A, what is the electric potential at point P? a. Vp= 2.5V b. Vp= 1.5V c. Vp= 1.0V d. Vp= -2.0V e. Vp= -0.5V R. 5. You have a square parallel plate capacitor with capacitance C. The plates are separated by a distance d and each square plate has a side length of L. If you half the separation distance to 0.5d and doubled the side length to 2L, what is the new capacitance? а. 8C b. 20 C. 0.5C d. 4C е. 0.25C 0.6A 0.1A Bulb 3
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