| Question |
Answer |
| Give a worded explanation of current. | Rate of flow of charge past a point in the circuit. |
| In what type of circuit is the current the same throughout? | Series |
| Define electrical energy. | Electrical Energy = Charge x Voltage (W = QV) |
| What is emf of a power supply a measure of? | Total energy that it supplied to each coulomb of charge |
| A power supply has an emf of 0.001V. When Ekrem's X-Box is connected to this a current of 5A is measured using an ammeter. Calculate the resistance of the circuit. | 0.0002 Ohms (By the word Ohms i mean the symbol) |
| Enter Yianni and Erol. Erol says 'Yo Ktori, you know that due to the incompetance of X-box,the free ammeters that they supply with the x-boxes give off a faulty reading.' Erol is correct and the actual current in the circuit is 5x10^-3A. Calculate resista | 0.2 Ohms |
| Define Power | Power = energy transferred/Time taken |
| How do you work out efficiency? | Energy usefully transferred/Total energy transferred |
| When current is proportional to voltage what law is obeyed? | Ohms law |
BIOL3326 Forms
