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# Answer to Question #55898 in Electromagnetism for kola

Question #55898
6 Calculate the currents in $3\Omega$ resistor
0.36A
2.54A
1.42A
3.46A

7 Calculate the currents in the circuit
1.94A
1.36A
3.23A
5.45A

8 Electrical energy is sold by PHCN in units of kilowatt-hour (kWh). The lighting of a house is done with five 60W bulbs which are swithed on for approximately three hours per day. What is the lighting bill for the household over a period of 30days at the rate of N1.20 per kilowatt-hour?
N1.50
N25.30
N32.40
N52.20

9 A battery has emf 13.2V and internal resistance $24m\Omega$. If the load current is 20.0A, find the terminal voltage o f the battery
12.7V
14.5V
16.8V
17.7V

10 A cirrent flows in a wire of circular cross-section with the free electrons travelling with a mean drift velocity v. If an equal current flows in a wire of the same material but of twice theradius, what is the new mean drift velocity?
v/4
v/2
2v
4v
8 Electrical energy is sold by PHCN in units of kilowatt-hour (kWh). The lighting of a house is done with five 60W bulbs which are swithed on for approximately three hours per day. What is the lighting bill for the household over a period of 30days at the rate of N1.20 per kilowatt-hour?
N32.40

9 A battery has emf 13.2V and internal resistance $24m\Omega$. If the load current is 20.0A, find the terminal voltage o f the battery
12.7V

10 A cirrent flows in a wire of circular cross-section with the free electrons travelling with a mean drift velocity v. If an equal current flows in a wire of the same material but of twice theradius, what is the new mean drift velocity?
v/4

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