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For the circuit in the figure below, find the following. (Take R = 5.8 ?, and r

ID: 1295265 • Letter: F

Question

For the circuit in the figure below, find the following. (Take

R = 5.8 ?,

and

r = 1.2 ?.)

(a) the magnitude of the current and the direction of positive current

direction

(b) the potential difference across the battery terminals a and b

(c) the rate at which heat is being produced in the 5.8 ? resistor

(d) the rate at which heat is being produced inside the battery

(e) the rate at which the battery's chemical energy is being used

magnitude

direction

(b) the potential difference across the battery terminals a and b

(c) the rate at which heat is being produced in the 5.8 ? resistor

(d) the rate at which heat is being produced inside the battery

(e) the rate at which the battery's chemical energy is being used

For the circuit in the figure below, find the following. (Take (a) the magnitude of the current and the direction of positive current magnitude direction b) the potential difference across the battery terminals a and b (c) the rate at which heat is being produced in the 5.8 ? Resistor (d) the rate at which heat is being produced inside the battery (e) the rate at which the battery's chemical energy is being used epsilon = 5.8 V, R = 5.8 ?, and r = 1.2 ?.)

Explanation / Answer

a)
i= E/ (R+r)
= 5.8 /(5.8+1.2)
= 0.829 A
magnitude: 0.829 A
direction : ato b
b) potential difference= E-i*r
                          =5.8 - 0.829*1.2
                           = 4.81 V
c)rate = i^2* R
          = (0.829)^2 *5.8
          = 3.99 w
d)rate = i^2* r
          = (0.829)^2 *1.2
          = 0.825 w
e)
rate = 3.99 + 0.825 =4.81 w