Part B Calculate the electric potential at position a.The electric potential of

Question

Part B

Calculate the electric potential at position a.The electric potential of the lower wire is zero.

Express your answer with the appropriate units.

Part C

Determine the current through the R1 = 800 .

Express your answer with the appropriate units. Enter positive value if the current through the resistor is directed to the right and negative value if the current through the resistor is directed to the left.

Part D

Determine the current through the resistor R2 = 1400 .

Express your answer with the appropriate units. Enter positive value if the current through the resistor is downward and negative value if the current through the resistor is upward.

Part E

Determine the current through the 1200- resistor.

Express your answer with the appropriate units. Enter positive value if the current through the resistor is downward and negative value if the current through the resistor is upward.

Part F

Determine the current through the 900- resistor in the rightmost branch.

Express your answer with the appropriate units. Enter positive value if the current through the resistor is downward and negative value if the current through the resistor is upward.

Explanation / Answer

given

R1 = 800 ,

R2 = 1400

E = 21 V

a )

Req = 1400 / 2 = 700

b )

current i = V / Req

i = 21 / 700

i = 0.03 A

i1 = i2 = 0.03 / 2 = 0.015 A

i3 = 0.015 / 2

i3 = 0.0075 A = i4

Va - 300 X ( 0.0075 ) = 0

Va = 2.25 volts

c )

current through R1 is = 0.015 A

d )

current through R2 is = 0.015 A

e )

current through R3 is = 0.015 A

f )

current through 900 Ohm is = 0.0075 A

g )

current through 300 Ohm is = 0.0075 A

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