# Tagged Questions

69 views

### Series - Parallel Resistor Calculations

Hi, I would be very grateful if anyone could shed some light on the below diagram as I'm trying to calculate the total resistance between A and B in this series parallel configuration. 10 and 20 ...
67 views

### Trying to visualize the wording of a question about finding the resistor that carries the highest voltage

I know how to find the higgest current in the resistor, it's just the visual that I'm second guessing. This is the question. This is the what I drew from it
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### If voltage is the same across each resistor in a parallel circuit, what's the point of resistors if there's 4 of them in a ciruit with 50volts

If voltage is the same across each resistor in a parallel circuit, what's the point of resistors if there's 4 of them in a ciruit with 50volts, it won't affect the voltage. I also noticed that when ...
2k views

### how to calculate total resistance in circuit with parallel and series resistors connected

A battery of EMF 8.0 V and internal resistance r = 1.0 – is connected to an external circuit as shown: I need to find out the total resistence and my problem is that I dont know which resistors ...
288 views

### More than 2 resistors in parallel

Most people know the formula for the total resistance of parallel resistors: $\dfrac{1}{R_t} = \dfrac{1}{R_1} + \dfrac{1}{R_2} + {}...{} + \dfrac{1}{R_n}$ If there are only 2 resistors, that can ...
478 views

### Resistors in Parallel

I understand that when you put Resistors in parallel the resistance decreases, my question is why does this actually happen? What causes the Resistance to decrease? When Resistors are in serial, their ...
506 views

### Capacitor in parallel with resistor on xoscope amplifier schematic

Short version: Why is C3 necessary in this circuit? Explanation: The schematic for the input buffer/amplifier circuit for xoscope is made up of subsections that are mostly broken down in the ...
565 views

### Single resistor powering multiple LEDs in parallel where current through resistor is lower than max allowed current for an individual LED

While writing an answer about using multiple diodes connected to a single resistor, I stumbled upon a case about which I haven't read a lot: What happens when we set the resistor so that it sets the ...
10k views

### Why exactly can't a single resistor be used for many parallel LEDs?

Why can't you use a single resistor for a number of LEDs in parallel instead of one each?
197 views

### Am I drawing more current if I'm giving multiple paths from supply to ground?

Illustrated as such: Am I drawing more current in the first case than the second case? Would this drain the 9V battery faster? Thanks