A simple series circuit consists of a cell, an ammeter, and a rheostat of resistance R. The ammeter reads 5A. When an additional resistance of 2 Ohms is added, the ammeter reading drops to 4A. Determine the resistance of the rheostat.

Q: The value of the battery is 3.4V. Resistor R1=9.7 ohm, R2=8.1 ohm and R3=4.3 ohm. Use the equivalent…

A:

Q: A certain wire has a resistance 9 Ω.  What is the resistance of a second wire, made of the same…

A: Given: Resistance of wire R=9Ω           Length of wire =L,           Diameter of the wire =2r…

Q: If Vs = 9 V, R1 = 33 2 and R2 = 82 02, what voltage wo decimal place) connected as in the circuit…

A:

Q: R1 + A + I

A: Here since the Ammeter is connected in parallel to the circuit, maximum  current will pass through…

Q: The total resistance R of three resistors in parallel is given by RR,R3 R = RR,+R,R3+R,R Suppose…

A: When three capacitor are connected in parallel then their equivalent resistance is given by the…

Q: Four resistors, 10 Ω , 14 Ω , 27 Ω , and 40 Ω , are in series.  Find the circuit current when the…

A: The total resistance will be the sum of all the resistance in series.

Q: Three resistors are connected in series across a battery. The value of each resistance and its…

A:

Q: A circuit has a 21Ω resistor, a 895Ω resistor and a 104 resistor all connected in series with each…

A: If Resistances R1, R2, R3 connected in series then equivalent resistance of the circuit is Req=…

Q: V 4 2 R In the circuit shown in the figure above, the ammeter reads 2.4 A and the voltmeter reads…

A:

Q: of 5 > Two 1.5 V batteries are connected in series with a 165.4 Ohm resistor. What is the current in…

A: There are two batteries connected in series.R = 165.4 ohm

Q: A 22 Ω resistor and a 2 Ω resistor are connected in series to an ideal 12 V battery. Find the…

A: GivenR1=22ΩR2=2ΩV=12V

Q: An auto mechanic needs to determine the emf and internal resistance of an old battery. He performs…

A: An old battery measurement by the voltmeter is 11.7VThe ammeter reading is 17.1A

Q: R1 R2 A +,

A:

Q: An auto mechanic needs to determine the emf and the internal resistance of an old battery. He…

A: emf= 11.9 V Internal resistance = 0.7484 ohm.Explanation:Step 1:Step 2:

Q: An auto mechanic needs to determine the emf and internal resistance of an old battery. He performs…

A: Emf=11.8v Current=17.7A

Q: The emf in the figure below is 4.50 V. The resistances are R1 = 22.0 Ω, R2 = 26.5 Ω, and R3 = 38.5…

A: Given, Resistances,R1=22Ω, R2=26.5Ω,R3=38.5Ω Voltage of battery, V=4.5 V

Q: What is the voltmeter reading (in volts) in the following circuit?  The zero reading is zero.  The…

A: Given, Resistances,R1=75Ω,R2=79 Ω Voltmeter resistance,R3=(75+79)(100)=15400 Ω EMF of cell,E=10 V

Q: Figure 28.0 V + + 3 www R ww 1₁ 6.00 Ω I, 3.00 Ω < 1 of 1

A:

Q: Problem 11:   A circuit with a resistance R = 157 Ω is connected to a battery with potential…

A:

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.