A 100W light bulb is turned on. It has an operating voltage of 120V. a) How much current flows through the bulb? b) What is the resistance of the bulb?
Q: Three lightbulbs each with a resistance of 50ohms, are connected in series to a 100 V power supply.…
A: The total resistance in the circuit is
Q: What battery voltage would you need to send 2.5 A of current through a light bulb with 3.6 Q of…
A:
Q: When the switch is open, the potential difference across the terminals of a battery is 20.0 V. When…
A: Note :- Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the…
Q: . A 20Ω, an 18Ω and an unknown resistor connected in series to give an equivalent resistance of 64Ω.…
A:
Q: Jump starting a car: A charged car battery is to be connected by jumper cables to a discharged car…
A:
Q: If you touch the terminal of a battery, the small area of contact means that the skin resistance…
A:
Q: To find resistance in a parallel circuit, you must sum the individual resitances The direction of…
A:
Q: Amara has two different lightbulbs of unknown resistance, a 9V battery, and an ammeter. She wires…
A:
Q: [ 4.00 M2 resistor and a 3.00 µF capacitor are connected in series with a 12.0-V power supply. What…
A: Value of the resistance, Value of the capacitance, The time constant of an RC circuit is given…
Q: Consider the circuit shown in the figure, where R1 = 10 Q; R2 = R3 = 20 Q. 120 V R3 R1 240 V H. I D.…
A: # NOTE: Thank you for the question. As per the company honor code, we are allowed to answer only…
Q: Lightbulb A is marked "10.0 W 120 V," and lightbulb B is marked "60.0 W 120 V." These labels mean…
A: Lightbulb A : 10 W , 120 V Lightbulb B : 60 W , 120 V
Q: You have a LED light bulb that is 6.0 W. You know the potential difference across the light bulb is…
A:
Q: The cord from an appliance is too short to reach the wall outlet in your room. You have two…
A: Given:The resistance of the wire is 0.0240 Ω.The current is 4.20 A.Calculation:Write the expression…
Q: A mobile phone charger draws O.2 A of current from the 120 V wall outlet. How much energy does it…
A: Energy = Power × Time # Power = IV where I is current and V is voltage P = (0.2)120 = 24 Watt =…
Q: A power transmission line is hung from metal towers with glass insulators having a resistance of…
A:
Q: Three light bulbs with different resistances are connected in parallel to a battery. Which one of…
A:
Q: A car battery has an emf of 12.6 V and an internal resistance of 0.080 Ω. The two headlights…
A: Given Emf =12.6V Internal resistance=0.080Ω Equivalent resistance=5.0Ω
Q: 12) A heart defibrillator passes 12 A of current through a patient's torso for 3×10´s to restore…
A: Given: Current, I=12 A Time, t=3×10-3 s To determine: (a) charge passed through body. (b) Voltage…
Q: A current of 2.5 A flows through a 10 ohm resistor for 1.5 minutes. The number of electrons…
A: Current flowing through the resistor is I = 2.5 A Time of flow is t = 1.5 min
Q: A heart defibrillator being used on a patient has an RC time constant of 15.0 ms due to the…
A: Given time constant=15.0 ms Capacitance (C)=7.25 x 10-6 F Initial voltage (Vo)=12000 v Final…
Q: A portable 1320-W forced air heater runs on a standard 110-V residential voltage, the heating…
A: Given data: Power (P) = 1320 W Voltage (V) = 110 V Required: Current (I) and Resistance (R)
Q: Two resistances, R1 and R2, are connected in series across a 6.0-V battery. The current increases by…
A:
Q: when an emergency radio is connected to a 9-V battery, a current of 25 mA flows through the radio.…
A: We first list the data given in the problem as :
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- 23 aAn electric equipment operating on 20 V draws a current of 4.0 A. (i). What is the resistance of the electrical equipment? (ii). What the equipment’s power consumption? (iii). How much energy does the equipment use if it operates for 30 minutes?Defibrillator machines are used to deliver an electric shock to the human heart in order to resuscitate an otherwise non-beating heart. It is estimated that a current as low as 17 mA through the heart is required to resuscitate. Using 100,000 Ω as the overall resistance, determine the output voltage required of a defibrillating device.
- DETAILS SHIPPS15 8.2.E.018. A 13.0 W LED light bulb is turned on. It has an operating voltage of 120 V. (a) How much current (in A) flows through the bulb? (b) What is the resistance (in 0) of the bulb? (c) How much energy (in J) is used each second? J each second??High-voltage power lines are a familiar sight throughout the country. The aluminum wire used for some of these lines has a cross-sectional area of 4.9 x 104 m?. What is the resistance of ten kilometers of this wire?
- A galvanometer has an internal resistance of 35 Ω and deflects full scale for a 70-μA current. A) Describe how to use this galvanometer to make an ammeter to read currents up to 25 A. What is the value of this resistor? B) Describe how to use this galvanometer to make a voltmeter to give a full-scale deflection of 300 V. What is the value of this resistor?In the circuit pictured, the resistors have values of R1 = 125 Ω, R2 = 120 Ω, and R3 = 148 Ω, and the battery has an emf ε = 271 V. A) Write an expression for the current through the battery. B)In amperes, how much current ibatt goes through the battery? C)Write an expression for the current through resistor 2. D) In amperes, whatis the current i2 through resistor R2?A) if a current in a wire is 5.0 A, how many coulombs of charge pass a point in the wire in 1 min? B) what is the current if 6.0x10^3 C pass a point in a circuit in 10.0 min? C) if a current in a circuit is 12 A , how many electrons pass a point in 1h?
- A toaster, a speaker, and a lamp are each plugged in parallel into a 110 V outlet with a 20 A fuse. a.) If the toaster draws 1500 Watts of power, the speaker draws 900 Watts of power, and the lamp draws 60 Watts of power, what current is drawn by each device? b.) Will this combination blow the fuse? Why or why not?Three identical 100.0-W, 120-V lightbulbs are connected across a 120-V power source as shown in in the figure below. Assume that the resistance of each bulb is constant (even though in reality the resistance increases markedly with current). 120 V R₁ R₂ (a) Find the total power supplied by the power source. W = (b) Find the potential difference across each lightbulb. AV₁ AV₂ = AV₂ = Need Help? Read It R₂ V Master ItQU5 a). A circuit consist of five resistors connected as below, determine the effective resistance in the circuit. R3 R5 R2 R4 Given that R1, R2,R3,R4 and R are given respectively as 500, 250, 300, 600 and 700Q, what is the current in the circuit if the potential across the resistors is 24 V?