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If two parallel 20 ohm resistors are each burning 10w, what is the voltage across them. Need answer, but also How to solve??
Need answer...
I will give you one hint.If two parallel 20 ohm resistors are each burning 10w, what is the voltage across them. Need answer, but also How to solve??
One thing that needs to be clarified is your wording EACH BURNING 10W. When you have 2 resistors in parallel then the 10W power is shared between the two resistors (5W each) because the equivalent circuit value is 10 ohms. Unless you meant that the total circuit wattage is 20W then I stand corrected. Otherwise Ohm's law would not apply.If two parallel 20 ohm resistors are each burning 10w, what is the voltage across them. Need answer, but also How to solve??
The values don't alter the formula.Otherwise Ohm's law would not apply.
As worded my first assumption is that the total wattage is 20 watts - 10 ohms per resistor, and that each resistor is 20 ohms. 2 resistors connected in parallel across a voltage source.One thing that needs to be clarified is your wording EACH BURNING 10W. When you have 2 resistors in parallel then the 10W power is shared between the two resistors (5W each) because the equivalent circuit value is 10 ohms. Unless you meant that the total circuit wattage is 20W then I stand corrected. Otherwise Ohm's law would not apply.
Yep, the formula P = E squared / R will work to find the voltage.
Parallel circuits, I will assume the voltage across each resistor will be equivalent to to your supply? The current through each one will be different. In a series circuit the voltage over each resistor will differ to the value of resistance and the current will be equal.
Since they both same Watts and both connected to same voltage then they be the same resistance and each draw same current. (within certain tolerance level anyway)Parallel circuits, I will assume the voltage across each resistor will be equivalent to to your supply? The current through each one will be different. In a series circuit the voltage over each resistor will differ to the value of resistance and the current will be equal.
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I was meaning in general that in parallel circuits the current will differ in general.Since they both same Watts and both connected to same voltage then they be the same resistance and each draw same current. (within certain tolerance level anyway)
True, because resistance is seldom exactly the same. So it depends on what tolerance level is acceptable before you start to consider those differences.I was meaning in general that in parallel circuits the current will differ in general.
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The voltage is the same as that across a single 20-ohm resistor dissipating 10w.If two parallel 20 ohm resistors are each burning 10w, what is the voltage across them. Need answer, but also How to solve??