1. H

    Series & Parallel circuit + bulb brightness

    Hello I'm working through a book (with answers) but am struggling with voltage, current, resistance and circuits. Please check my understanding below and let me know if I've finally understood. Thank you. In particular I'm confused in Q2 Q1. A student connects light bulbs, A and B, and...
  2. S

    Are the resistors in series vs in parallel?

    1. The problem statement, all variables and given/known data A metal wire of resistance R is cut into two pieces of equal length. The two pieces are connected together side by side. What is the resistance of the two connected wires? 2. Relevant equations RSeries = R1 + R2 + ... RParallel =...
  3. C

    Pumps connected in Parallel and Series PROBLEM

    Hello, Recently, we conduited an experiment from Fluid Mechanics Laboratory course, and, while doing my report, i was angry that results are wrong. Then i started to do trial and check in my excel and... results got preety similar to characteristic curve that is seen on manufacturer's website...
  4. M

    Are these capacitors in series or parallel?

    I need to find the voltage across the 2uF capacitor and I'm confused as to what they are ordered in. I'm also looking at the voltage after the loose lead is connected to the 2uF, so the second diagram.
  5. M

    Resistors in series and in parallel

    Two resistors connected in series have an equivalent resistance of 690 ohms. When they are connected in parallel, their equivalent resistance is 150 ohms. Find the resistance of each resistor
  6. T

    Is the following a parallel or a series circuit?

    Imagine two copper plates 6" square with a single wire soldered to each plate. Now arrange several D-size batteries, as many as you can arrange standing up on their '-' ends, on one of the plates as it's laying flat on the table. Now set the other plate on top, so it touches all the '+' ends...
  7. L

    Path difference of two series of monochromatic waves raech a point on screen

    i was told that the path difference of two series of monochromatic waves raech a point on screen are same ... why is it so? can someone explain?
  8. O

    resistors - series circuit. I1=I2=...

    I=Q/S, C/S=A {m.k.s} v=12v (for exam) so eletric charge will passed from the high vol to low vol. and resistors dec the volt. does it influence on the force? if yes what are the way it change it? and if yes the velocity changed so less electric charges passed trough the cut of the wire in one...
  9. I

    Voltage across points in a series circuit

    As the subject suggests, I'm trying to solve voltages in a series circuit. These voltages do not correlate to a component, but rather the voltage of points in between the components. I've made a picture to illustrate what I'm talking about: Now if I use KVL, for V1 I get -10V, V2 I get...
  10. R

    capacitors in series, determine voltage.

    A 3.36uF and a 5.47uF capacitor are connected in series across a 25.0-V battery. A 7.43uF capacitor is then connected in parallel across the 3.36uF capacitor. Determine the voltage across the 7.43uF capacitor. I struggled with this problem and tried to use an equilent capacitance formula: Q =...
  11. R

    voltage in series and parallel networks

    Hello again...I posted a couple of problems that I have attempted. I think I have a better handle on these ones, but was hoping could let me know if i am right or not. Here is what I have so far Thanks again 8.1 circuit 1: Voltage at A = 1.0V Voltage at B = .5V circuit 2: Voltage at A =...
  12. D

    frequency in series and parallel circuits

    When placed in series a coil and a capcitor resonate at a frequency of 2251Hz and when placed in parallel they resonate at a frequency of 2228Hz. At parallel resonance it is also found that a current of 5mA flows from the supply when the supply voltage is 25V rms. Determine the value of the...
  13. M

    Capacitor, Inductor and a DC power supply in series

    A circuit has a battery(V), Capacitor(C) and Inductor(L) connected in series. At t < 0, the switch is open and the capacitor has an initial charge of -800uC and Io = 0.0Amps.. When the switch is closed at t = 0, I want to know what happens here. I only understand an LC circuit where there is...
  14. K

    Cell in series?

    I have a problem there are two cells connected in series, while their poles are connected like +--+, but not +-+- if the circuit is completed with a light bulb connected, will it drives any current and will the light bulb ON?? I think the answer is yes, but I don't understand why and I would...
  15. H

    Capacitors in series? or parallel?

    Q)Four identical capacitors are connected as shown in the figure. The equivalent capacitance across PQ is 0.1 microfarad. If the points R and S are connected by a wire the equivalent capacitance across PQ will become..? (ans: 0.2 micro F) Here's what I think, Initially the capacitors are in...
  16. R

    Capacitors in Series

    The drawing shows two fully charged capacitors(C1= 2.00 microF, q1=6.00 microC; C2=8.00 microF, q2=12.0 microC). The switch is closed, and the charge flows until equlibrium is reestablished(i.e until both capacitors have the same voltage across their plates). Find the resulting voltage across...
  17. R

    Circuits Wired Partially in Series and Partially in Parallel

    Determine the power dissipated in the 5.0 ohms resistor in the circuit shown in the drawing. see the attachment for the diagram.
  18. T

    Series Of Basic Questions

    Just found out that this is due in 11 hours so I'm rushing to finish, and this class is about the only one I truly do not understand, even if it is just basics. 1) Atwood Pulley m1=33kg m2=11kg a)Determine acceleration. b)What is the tension in the connecting string? 2) Three...
  19. I

    Charges on capacitors...

    Capacitors C1 = 4.0 μF and C2 = 2.0 μF are charged as a series combination across a 100-V battery. The two capacitors are disconnected from the battery and from each other. They are then connected positive plate to positive plate and negative plate to negative plate. Calculate the resulting...
  20. T

    Series and Parallel Circuits

    1. Prove that when n identical resistors of resistance R are connected in parallel the equivalent resistance is R/n. 2. A piece of copper wire of resistance R is cut into 3 equal parts. When these 3 parts are connected in parallel, what is the resistance of the combination? 3. Say you have a...