2. What is the value of the current flowing through the circuit shown in Figure 1? (4 A) Battery v = 12 V 4|||+ Figure 1

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2 What Is The Value Of The Current Flowing Through The Circuit Shown In Figure 1 4 A Battery V 12 V 4 Figure 1 1 (136.9 KiB) Viewed 29 times

2. What is the value of the current flowing through the circuit shown in Figure 1? (4 A) Battery v = 12 V 4|||+ Figure 1: Simple electrical circuit 3. What is the direction of the current (clockwise or counterclockwise) in Picture 1? (Clockwise) Lamp R = 3 Ω 4. If internal resistance of the battery shown in Picture 1 is 0.102, what is emf of the battery? (12.4V) 5. How much power dissipates in the circuit shown in Picture 1? (49.6W) 6. What length of 3 mm diameter copper wire is needed to make 0.16892 resistor, if the resistivity of copper is 1.72x10-8 22.m? (69.0m) 7. Of the five wires listed in Table 1, which one has the smallest resistance? (D, with a resistance of 0.0152 2.) 8. If the five wires listed in Table 1 are connected to identical batteries, which one carries the smallest current? (A, with a resistance of 0.603 2.) Wire A B с D E Material Iron Copper Copper Copper Iron 2.0m Table 1: Materials and dimensions of resistors; resistivity of copper is 1.72e-8 m; resistivity of iron is 9.7e-8 m Length 2.0m 2.0m 2.0m 1.0m Diameter 6.4e-4m 6.4e-4m 1.2e-3m 1.2e-3m 1.2e-3m