In the path given below, what is the voltage across R1 resistor?
15
Voltage divider rule
When n numbers of resistors are connected in series, then the voltage across Rth resistor can be obtained as:
\(V_{th}=V_s\times {R_{th}\over R_1+R_2.......R_n}\)
where, Vs = Supply voltage
Vth = Voltage across Rth resistor
Calculation:
Given, Vs = 45 V
Rth = 5Ω
\(V_{th}=45\times {5\over 5+10}\)
Vth = 15 V
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