- Remember that the law of reflection is: angle i = angle r (angle of incidence is the same as the angle of reflection)
- Remember that the potential difference is: the supply voltage (overall voltage in the circuit) minus the voltage of the bulb
- Read the questions more carefully
- An ammeter does not affect the size of the current, the battery affects the size of the voltage
2. Because voltage in a series circuit is shared
ReplyDelete4. And therefore the size of the current because V=IR