(II) What is the internal resistance of a 12.0-V car batterywhose terminal voltage drops to 8.8 V when the startermotor draws 95 A? What is the resistance of the starter?

Q: Consider two resistors, R₁ and R₂, connected in parallel. Derive the expression that gives the total…

A:

Q: A flashlight bulb rated at 2.0 W and 3.0 V is operated by a 9.0-V battery. To light the bulb at its…

A: The current across the bulb can be obtained as P=VbulbII=PVbulb=2.0 W3.0 V=0.67A

Q: (II) The RC circuit of Fig. 19–70 (same as Fig. 19–21a) has R = 8.7 kN and C = 3.0 µF. The capacitor…

A: Resistance (R)=8.7 kΩ Capacitance (C)=3 μF Initial voltage across the capacitor =V0 Final voltage…

Q: () THE FOLLOWING QUESTIONS ARE BASED ON THE INFORMATION GIVEN HERE, R2 www The emf source, E = 3.4…

A: Time constant in RC circuit, τ = ReqCeq Req is equivalent resistance Ceq is equivalent capacitance…

Q: (c) 7 Laura now adds another resistor, R2, in parallel to resistor R₁. ile 2.1 R₁ + R2 12V 4.8…

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Q: The current through the 20-N resistor in Fig. 19–81 does not change whether the two switches S1 and…

A: Given: The current through 20 ohm does not change.

Q: (a) You need a 45 - Ω resistor, but the stockroom has only20. - Ω and 50. - Ω resistors. How can the…

A: (a). connect two 50 ohms in parallel combination and then connect a 20ohm in series with the…

Q: (1) Analyze the circuit below: 102 30 V 15 V V3 Figure 1: This circuit runs Wall-E (a) What is the…

A:

Q: - (III) (a) A network of five equal resistors R is connected to a battery & as shown in Fig. 19–60.…

A: Given quantities: Resistance of each resistors = R Potential difference offered by the battery = E…

Q: A Wheatstone bridge is a type of “bridge circuit" used to make measurements of resistance. The…

A: (a) Apply Kirchhoff’s loop rule in the loop ABDA. Apply Kirchhoff’s loop rule in the loop BCDB.

Q: (i) In the circuit shown below, a 9 2 resistor and a 7.5 2 resistor are connected in parallel. The…

A:

Q: (III) When the resistor R in Fig. 19-73 is 35 N, the high- resistance voltmeter reads 9.7 V. When R…

A: Given, R1= 35 Ω, R2= 14 Ω, V1=9.7 V, and V2=8.1 V

Q: (II) Determine (a) the equivalent resistance of the circuit shown in Fig. 19–48, (b) the voltage…

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Q: (ii) In the circuit shown below, two batteries are connected opposing one another in the circuit.…

A:

Q: Laura now uses these three light bulbs to replace the resistors in her circuit: 12V 8 B Explain…

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Q: (II) You buy a 75-W lightbulb in Europe, where electricityis delivered at 240 V. If you use the bulb…

A: Given: Voltage = 240 V Power of the light bulb = 75 W

Q: 80. FIGURE 21-54 shows a simplified circuit for a photographic flash unit. This circuit consists of…

A: For charging of capacitor we will use

Q: Problem 6: (II) A 12-V battery causes a current of 0.60 A through a resistor. (a) What is its…

A: Given data :Voltage, V = 12 VCurrent, I = 0.60 ATime, t = 1 minute = 60 seconds.  Solution : Part…

Q: (I) Three 45Ω lightbulbs and three 65Ω lightbulbs areconnected in series. (a) What is the total…

A: Three 45Ω light bulbs and three 65Ω light bulbs are connected in series

Q: (d) Calculate the total power, Ptot (in watts) that is supplied to this circuit. (e) Calculate the…

A:

Q: (a) What single resistor would be equivalent to the resistors in this arrangement? (b) If 24 volts…

A: Here, two 6Ω resistors are connected in series in the upper portion of the circuit. The equivalent…

Q: (II) An ammeter whose internal resistance is 53Ω  reads5.25 mA when connected in a circuit…

A: Given: Internal resistance = 53 ohm Current in the circuit = 5.25 mA Values of series resistors =…

Q: (a) (b) 25 V 150 2 100 2 200 2 220 2 + 15 V 100 Ω A 300 2

A: A) R1 = 200 ohnm R2 = 100 ohm V = 15 volts

Q: (II) (a) Determine the equivalent resistance of the "ladder" of equal 175- resistors shown in Fig.…

A:

Q: (II) Estimate the resistance of the 120 Vrms circuits in yourhouse as seen by the power company,…

A: Given data The potential difference across the bulb is V = 120 Vrms. The power of the light bulb P =…

Q: (III) For some applications, it is important that the valueof a resistance not change with…

A: Given, We make the combined resistor from a carbon resistor (R1 at 0°C) in series with a nichrome…

Q: (c) Determine through the 7 ohm resistor. the current ww ww 70 82 9V 12V

A:

Q: (I) Calculate the terminal voltage for a battery with aninternal resistance of 0.900Ω  and an emf of…

A: Given: The emf is E=6 V. The internal resistance is r=0.9 Ω. Part (a) Given: The connected series…

Q: (II) A certain copper wire has a resistance of At 15.0 Ωwhat point along its length must the wire be…

A: R = 15 Ω

Q: (I) Four 1.50-V cells are connected in series to a 12.0 Ωlightbulb. If the resulting current is 0.45…

A: Four cell of 1.50-V cells are connected in series to a 12.0 Ω light bulb. If the resulting current…

Q: (III) A 10.0-m length of wire consists of 5.0 m of copperfollowed by 5.0 m of aluminum, both of…

A: Given data The total length of the wire is, Lw=10 m The length of the copper wire is Lc=5.0 m The…

Q: In the given circuit diagram, what will be the reading of the ammeter,' when, (i) key K, is closed…

A:

Q: (I) What is the maximum voltage that can be applied acrossa 3.9-kΩ resistor rated at 1/4 watt?

A: Electrical Power is given by,  P=V2R Given: Resistance R=3.9 k-ohm Power P=1/4 W  =0.25 W

Q: (c) What is the time constant in a circuit with a resistor and a capacitor in series?

A:

Q: (I) What is the resistance of a toaster if 120 V produces acurrent of 4.6 A?

A: The current produced by the toaster, I=4.6 A   The voltage of the toaster, V=120 V

Q: 1. In which circuits shown in Fig. 19–40 are resistors connected in series? (a) (b) w ww (c) (d)…

A: The resistances are treated as connected in series when the same current flows through the…

Q: (II) A 120-V fish-tank heater is rated at 130 W. Calculate(a) the current through the heater when it…

A: Solution : a) As we know , P = IE where:P = Power in WattsI = Current in AmperesE = Voltage…

Q: 054 When the lights of a car are Lights switched on, an ammeter in series with them reads 10.0 A and…

A: The current,

Q: (19) Consider two identical simple RC circuits each composed of a ca- pacitor (2.01 mF), a resistor…

A: It is given that, we have two identical RC circuits with,  C=2.01 mF R =32 KΩ V =14.4 V ( a constant…

Q: (II) A 100-W lightbulb has a resistance of about 12 Q when cold (20°C) and 140 N when on (hot).…

A: Given quantities: Resistance at 20 degree Celsius (R0) = 12 ohm final resistance (R) = 140 ohm…

Q: (II) Compute the voltage drop along a 21-m length ofhousehold no. 14 copper wire (used in 15-A…

A:

Q: (II) A rectangular solid made of carbon has sides of lengths 1.0 cm, 2.0 cm, and 4.0 cm, lying along…

A: Current is dependent on voltage between 2 terminals. This is called Ohm's law. Mathematically,…

Q: (II) A length of wire is cut in half and the two lengths arewrapped together side by side to make a…

A: