LAB 4 PRE-LAB The pre-lab is due when you walk through the door into lab, before
ID: 1873886 • Letter: L
Question
LAB 4 PRE-LAB The pre-lab is due when you walk through the door into lab, before the TA has started the lab session. Your score on the pre-lab is added to your score on the lab exercise. 1.(2 pts.) Define potential difference or voltage drop. What does it mean to have 1 Volt (1 v) of electric potential? 2.(1 pt.) What component of the circuits in this lab is the source of the electrical potential? 3. (2 pts.) Label the components of this diagram as batteries, resistors, and wires. 4. (2 pts.) What is being moved in a circuit? 5. (2 pts.) What is being used up in a circuit? 6. (1 pt.) When you plug a light bulb into a wall socket, what is the resistor in the circuit?Explanation / Answer
1 Ans: Potential difference it Voltage drop is the difference in electric potential between two points. Units for potential difference is"Volt"
1 volt of electric potential means, one Joule of work will be done to move coulomb charge between the two points.
2 Ans: In lab the source is electric potential are batteries or regulated power supplies.
3 Ans: In the given circuit diagram we have resistors and batteries(cell).
4 Ans: In the circuit electrons will move.
5 Ans: In a circuit voltage will cause the movement of electrons which is current. So, the current is used in a circuit.
6 Ans: In this circuit the resistor is the light bulb.
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