how to calculate voltage in a electric circuit(i need a diagram also)
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We use the Kirchoff's voltage law and current law.
We have that the sum of potential differences across all circuital elements in a closed circuit is 0. At each junction the sum of the currents flowing in is equal to the sum of the currents flowing out.
see diagram.
E - R1 * i - i1 * R2 - R4 * i = 0
R2 i1 - R3 * i2 = 0
i - i1 - i2 = 0
we have 3 equations and 3 variables i, i1, i2.
After solving for them, the voltages across resistors can be calculated as products of resistances and currents.
We have that the sum of potential differences across all circuital elements in a closed circuit is 0. At each junction the sum of the currents flowing in is equal to the sum of the currents flowing out.
see diagram.
E - R1 * i - i1 * R2 - R4 * i = 0
R2 i1 - R3 * i2 = 0
i - i1 - i2 = 0
we have 3 equations and 3 variables i, i1, i2.
After solving for them, the voltages across resistors can be calculated as products of resistances and currents.
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