A combination of three resistors R1, R2 and R3 in series is connected across a voltage source Vt. The voltage drop across R2 and R3 are 13 V and 29 V, respectively. If the current supplied by the source voltage is 1.5 A and the total power supplied by the source is 90 W, Calculate the following: A. The value of Vt and the voltage drop across R1. B. The equivalent resistance across the voltage source, and the values of R1, R2 and R3 C. The power dissipated by each resistor
Ohm's law
Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.
Path of Least Resistance
In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.
1. A combination of three resistors R1, R2 and R3 in series is connected across a voltage source Vt. The voltage drop across R2 and R3 are 13 V and 29 V, respectively. If the current supplied by the source voltage is 1.5 A and the total power supplied by the source is 90 W, Calculate the following:
A. The value of Vt and the voltage drop across R1.
B. The equivalent resistance across the voltage source, and the values of R1, R2 and R3
C. The power dissipated by each resistor
2. Four resistors, R1 = 12 Ω, R2 = 15 Ω, R3 = 10 Ω and R4 = 8 Ω are connected such that the series combination of R1 and R2 is connected in parallel with the series combination of R3 and R4. The combination is then connected across a 12 V DC power supply.
A. Draw the schematic diagram and label the circuit elements.
B. Calculate the equivalent resistance of the circuit.
C. Find the total current of the circuit, the voltage across each resistor and the current through each resistor.
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