Close Switch 2 J 800 3 4 2 Graded 2: State whether the light bulbs below are a) in series b) in parallel or c) neither. Remember that if resistances are in series, the current through each must be the same. If resistances are in parallel, the voltage across each is the same since their ends are connected together. Bulbs 1 and 2: Bulbs 1 and 3: Bulbs 2 and 3: Branch with bulbs 1 and 2 and Bulb 3: Bulbs 1 and 4: Bulbs 3 and 4:

I need help on question 5?

A simple circuit with light bulbs and a battery is shown below: B fe A E F H K L 1. Which of the light bulbs (if any) do NOT light up because they have negligible current? 2. Which of the light bulbs (if any) in the are connected in series to each other? 3. If each light bulb has a resistance R, what is the effective or equivalent resistance of the circuit in terms of R?

Can you help me with this?

2

1. Students are experimenting with circuits in their physics class and they build the two working circuits pictured below. The battery in each circuit is identical and each bulb (resistor) they add provides the same amount of resistance. Circuit A Circuit B R2 R3 They notice that every time they added bulb 3 (R3) to Circuit A, the brightness of all the bulbs dimmed but when they added bulb 3 (R3), nothing changed in the brightness of the bulb. Which explanation of this observation is most complete?

TO 2.The voltage is U=6V. R1= 12 R2 = 22 t I. R3 = 32 ORDE (1)Please CORDEIRO equivalent resistance in the calculate the first LUN TONI2046040 (2)Please calculate the current in the second line I,. R2 line). (R3 line) PADEIRO I. R1 R2 R3

1. The 300-µF capacitor in the figure on the right is initially charged to 100 V, the 1200-µF capacitor is uncharged, and the switches are both open. a. What is the maximum voltage to which you can charge the 1200-µF capacitor by the proper closing and opening of the two switches? b. How would you do it? Describe the sequence in which you would close and open switches and the times at which you would do so. The first switch is closed at t = 0. 300 µF: 5.3 H 1200 μF

From the following statements, identify those that are always true about simple series circuits or always true about simple parallel circuits as shown in (Figure 4). The bulbs in the circuits do not have the same resistance (i.e., RA≠RB≠RCRA≠RB≠RC). Drag each item to the appropriate bin. If an item does not describe a simple series or simple parallel circuit, drag it to the “neither” bin.

For the circuit below.  Hint, use the fact that the change in voltage is equal across all branches in a parallel circuit.  ΔV1=ΔV2, R1I1=R2I2 Determine I2.  Determine I3.  Determine I4.   Determine IT.