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Julia measures a current of 0.8 A at a voltage of 12 V in a random circuit.

Calculate the resistance in this circuit.

Calculate the resistance in this circuit.

P = U x I

R = U / I

E = P x t

Donna reads a voltage of 4.50 V and a resistance of

300 Ohms in a circuit.

Calculate the current (in mA) in this circuit.

300 Ohms in a circuit.

Calculate the current (in mA) in this circuit.

P = U x I

R = U / I

E = P x t

P = U x I

R = U / I

E = P x t

A lamp is been lit all evening, about 5.5 hours. The lamp is plugged in the mains socket and the current through the lamp is 400 mA.

Calculate the energy consumption from this lamp and the costs of the use of this lamp if 1 kWh = 22 cents

Calculate the energy consumption from this lamp and the costs of the use of this lamp if 1 kWh = 22 cents

P = U x I

R = U / I

E = P x t

John reads a voltage of 12V. In addition,

the circuit has a total resistance of 30 Ohms. Calculate the power in this circuit.

the circuit has a total resistance of 30 Ohms. Calculate the power in this circuit.

P = U x I

R = U / I

E = P x t

Camil has a lightbulb with a power of 50W. This bulb needs to be plugged into the mains socket, otherwise is won't work.

Calculate the resistance of this bulb

Calculate the resistance of this bulb

P = U x I

R = U / I

E = P x t