(a) What is the current through the battery? ______ A (b) What is the current th

Question

(a) What is the current through the battery?
______ A

(b) What is the current through the resistor?
______ A

(c) What is the power dissipated in the resistor?
______ W

(d) How much energy is dissipated in the resistor in 4.5 minutes?
______ J

A resistor with R = 95 ? is connected to a battery with emf E = 3.1 V. (a) What is the current through the battery? ______ A (b) What is the current through the resistor? ______ A (c) What is the power dissipated in the resistor? ______ W (d) How much energy is dissipated in the resistor in 4.5 minutes? ______ J

Explanation / Answer

a).I = V/R = 3.1/95=0.032A

b).same as above = 0.032A

c).P =V2/ R = 3.1x3.1 / 95 = 0.101W

d)E=Pxt = 0.101 x 4.5x60 = 27.312J.

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