When a battery is connected to a load with a resistance of 40.0 Ω, the terminal voltage is 24.0 V.  When the resistance of the load is reduced to 15.0 Ω, the terminal voltage is 23.5 V.  Find the emf and the internal resistance of the battery.

Q: 10.0 0 2.5 V Figure shows a circuit which consists of a battery connected in series with a 10.0 Q…

A: Given data:  Resistance (R) = 10.0 Ω Potential difference across resistor R (V) = 2.5 V Internal…

Q: When a cell of emf 6 V is connected in a circuit gives a terminal voltage of 5.25 V for a total…

A: Given : emf of cell, E = 6 V             terminal voltage of cell, V = 5.25 V             Current, I…

Q: A battery has an unloaded terminal voltage of 48 V. When a load of 15 ohms is connected to the…

A:

Q: A battery with EMF of 20 V and an internal resistance, r = 0.02 ohms is connected to the load…

A:

Q: A battery with an emf of 18 V and internal resistance of 1.0 W is connected across a 5.0 W resistor.…

A:

Q: A battery with an EMF of 12 V and an internal resistance of 1 Q is used to charge a battery with an…

A: Given: The emf of the first battery is 12 V and internal resistance 1 Ohm. The emf of the second…

Q: A circuit consists of two resistors connected in parallel. If the total resistance is 1403 Q and one…

A: Given data:  Two resistors are connected in parallel combination RT = 1403 Ω and R1 = 2000 Ω…

Q: When resistors 1 and 2 are connected in series, the equivalent resistance is 16.4 Q. When they are…

A:

Q: A battery has an emf of 12.0 V and an internal resistance of 0.05 ohms. Its terminals are connected…

A:

Q: In the US, the conventional voltage seen in a recepticle (wall outlet) is 120 V. How many amperes is…

A:

Q: The following results are for five cells in series. The e.m.f. of the five cells together is 6.9 V.…

A: E = 6.9 V  V = 3.3 V  R = 2.2 ohm I =1.5 A

Q: 10.0 0 2.5 V Figure shows a circuit which consists of a battery connected in series with a 10.0 N…

A: Data Given ,  Value of the resistor ( R ) = 10 ohm Potential difference across the resistor R ,.  (…

Q: An idealized ammeter and voltmeter are comnected to the circuit. When switch S in Figure is open,…

A:

Q: Ten cells, each with an internal resistance of 0.20 ohms and an e.m.f. of 4.5 V are connected (a) in…

A:

Q: In the circuit shown below, the internal resistance of the voltage DMM1 is 0.5 M2 and that of the…

A: R1 = 105 ohm R2 = 5×104 ohm resistance of DMM2 = 106 ohm

Q: When resistors 1 and 2 are connected in series, the equivalent resistance is 15.6 Q. When they are…

A: Given data: Let the two resistor's be R1 and R2. The equivalent resistance when R1 and R2 are…

Q: The following results are for five cells in series. The e.m.f. of the five cells together is 6.9 V.…

A: E = 6.9 V  V = 3.3 V R = 2.2 ohm  I = 1.5 A

Q: What is the output voltage (in V) of a 3.0000 V lithium cell in a digital wristwatch that draws…

A:

Q: When a R = 88.4 Q resistor is connected across a 11.2 V battery, a current of 113.3 mA flows. What…

A: Given  R = 88.4 ohm  V = 11.2 V  I = 113.3 mA  Rint =???

Q: In the US, the conventional voltage seen in a recepticle (wall outlet) is 120 V. How many amperes is…

A:

Q: If a circuit has a resistance of 18 Q and a current of 15 A, what is the voltage? (A) 3.0 V (B) 4.0…

A: Given data :              Resistance = R            Current = i                        To find :…

Q: Four identical resistors are connected in parallel to an ideal 12.0-V source. If the equivalent…

A:

Q: A 12V battery having an internal resistance 60 is connected to a load resistor. The current through…

A: Given that  A 12V battery having an internal resistance 60 is connected to a load resistor. The…

Q: The emf of a battery is E = 12 V . When the battery delivers a current of 1 A to a load, the…

A: Given: The emf of the battery is 12 V. The terminal voltage is 10 V. The current in the circuit is 1…

Q: A battery delivering a current of 55.0 A to a circuit has a terminal voltage of 23.7 V. The electric…

A: Given:current, i=55ATerminal voltage,vt=23.7VPower, P=34WTo find:emf, e=?

Q: A battery is supplying electrical power to a single resistor R. If the total current in the circuit…

A: Given data:  Current (I) = 0.75 A External resistance = R Battery Emf (ε) = 8 V Internal resistance…

Q: A battery is manufactured to have an emf of 24.0 V, but the terminal voltage is only 22.0 V when the…

A:

Q: The image shows a circuit diagram that includes a battery with an emf of 10.0 V, some resistors, and…

A: (a) To calculate Req Req=35.0 + (42*7/(42+7)) + 14 = 55 ohm

Q: A combination of two parallel resistors of 12.0 ohms and 6.00 ohms is connected in series with a…

A:

Q: A battery has E= 30 V, and an internal resistance of 3 0 What is the terminal voltage when it is…

A:

Q: A practical battery supplies a current of 4 A with a terminal voltage of 15 V. When being charged…

A: EMF of a battery is the voltage it supplies at constant rate when it is connected to a resistance.

Q: If an electrical component with a resistance of 62 Ω is connected to a 111-V source, how much…

A:

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: Power = 30 w voltage V = 120 V    Current through the light  I = P/ v  I = 30 / 120 = 0.25 A

Q: A resistor is connected across the terminals of a 3.00-V battery, which delivers 1.70 105 J of…

A: Given information: The voltage of the battery (V) = 3.0 V The energy provided by the battery (E) =…

Q: A 537×10−6 F capacitor is discharged through a resistor, whereby its potential difference decreases…

A: SOlution: Given that V = 21.9 V V0 = 86.5 V T = 4.65 s C = 537x10-6 F To find the resistance

Q: Find the resistance(in the unit of Ohm) of a Nichrome rod of diameter d31 mm and has a length L=9…

A:

Q: A practical battery supplies a current of 5 A with a terminal voltage of 15 V. When being charged…

A:

Q: Calculate the terminal voltage for a battery with an internal resistance of 0.950 SN and an emf of…

A: (A) Given Data : The internal resistance of the battery is given as r=0.950 Ω The emf of the battery…

Q: A 2 nF capacitor with an initial charge of 16 micro.C is discharged through a 2000 ohm, the maximum…

A:

Q: A video game device requires six 1.50 V AA batteries in series, which can move a charge of 250 C.…

A: Current = potential/ resistance Also, current = charge/time

Q: What is the voltage in volts (V) across the 2.00 a resistor in the circuit below if an emf of 24 V…

A:

Q: A battery has an emf of 14.0 V and an internal resistance of 0.08 ohms. Its terminals are connected…

A: Data given: Battery emf (ε) = 14 V Internal resistance (r) = 0.08 ohms Load resistance (R) = 3.00…

Q: A battery has ɛ= 30 V, and an internal resistance of 2.2 Q. What is the terminal voltage when it is…

A:

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.