If there is 60 v across a 680 ohm resistor, what is the power?

Q: A color television set draws about 2.5 A when connected to a 120-V source. What is the cost (with…

A: Given data:  Current (I) = 2.5 A Voltage (V) = 120 V Cost of electricity = 8 cents/kWh Time (t) =…

Q: You need a 45 resistor, but the stockroom has only 20 2 and 50 resistors. How can the desired…

A:

Q: What is the power consumed by the resistor of 20 ohm connected across 100 V source ?

A: Given, Resistance, R = 20 ohm Source Voltage, V = 100 V

Q: A copper wire has a resistance of 0.500Ω at 20.0ºC, and an iron wire has a resistance of 0.525Ω at…

A:

Q: What is the total resistance provided by five identical resistors of value 5 ohms?

A:

Q: Two identical resistors in parallel have an equivalent resistance of 2ohms. If the resistors were in…

A: Given : Equivalent resistance of resistors when they are in parallel (Req) = 2 ohms

Q: When a voltmeter is connected across the terminals of a resistor, what usually happens to the…

A: When voltmeter is connected across the resistor, then the potential difference across the resistor…

Q: What is the total power (W) dissipated in the two resistors in the circuit shown if R1=10ohms,…

A: Given Data : The resistance of resistor R1 is given as R1=10 Ω The resistance of resistor R2 is…

Q: I have ten-ohms resistors available to connect and arrange in a series or parallel or in a combo of…

A:

Q: If 12-V battery supplies 1.90 A to a 3.32Omega resistor What is the terminal voltage of the battery?

A: Given data:  Battery emf (E) = 12 V Current (I) = 1.90 A Resistance (R) = 3.32 Ω Required: The…

Q: . If you change the value of the battery voltage, how does the resistance of the resistor change?

A:

Q: If two 20uf capacitors in series were connected to two 1 k ohm resistors in parallel… what would the…

A: Given, Two capacitor of capacitance C = 20 μF Resistance R = 1 kΩ = 1000 Ω

Q: hat resistance do you need to connect in parallel to a 125 Ω resistor to get a total of 49.0 Ω?…

A: 1Rnet=1R1+1R2

Q: What are the largest and smallest resistances you can obtain by connecting a 36.0-Ω, a 50.0-Ω, and a…

A: The largest resistance is found out by connecting resistors in series. the expression for find…

Q: A 120-Ohm resistor is in series with unknown resistor. The voltage drop across the unknown resistor…

A:

Q: What minimum number of 75-W lightbulbs must be connected in parallel to a single 120-V household…

A: The current through one bulb can be calculated as follows,

Q: A copper wire has diameter 0.5 mm and resistivity of 1.6 × 10-8 Ω m. What will be the length of this…

A:

Q: Ritche The potential difference across a 100 ohm resistor is 4.0 volts . What is the power…

A: All three resistance connect in parallel

Q: 0.73 amps flow thru a 15 Ω resistor. How muxh voltage does the resistor use ? How much power is…

A: Answer:-  Given  Current (I) = 0.73 Ampere  Resistance (R) = 15 ohm  We know that According to ohm's…

Q: If each resistor is rated at 0.50 W (maximum without overheating), what is the maximum voltage that…

A:

Q: You need a 45 Ω resistor, but the labroom has only 20 Ω and 50 Ω resistors. For a minimum number of…

A:

Q: When a voltmeter is connected across the terminals of a resistor, what usually happens to the…

A: The voltmeter is a device which is used to measure the potential difference between two points.

Q: What is the value of the unknown R if the voltage across the 500 resistances is 4.00 V?

A: This circuit can be analysed by using ohm's law, kirchoff's voltage and current law. Ohm's law -…

Q: What is the potential difference across a 15 ohms resistor when a current of 6.5A passes through it?

A:

Q: If the current through a resistor is increased by a factor of 2, how does this affect the power…

A: The power in terms of current and resistor is P=I2R

Q: In the figure resistor 1 = 126 2, resistor 2 = 81 2, and the ideal batteries have emfs ɛ1 = 29…

A: I=ER

Q: Say you have two resistor with resistane R = 32 KN and R = 59 KN. What is the equivalent resistance…

A:

Q: What is the total current of the circuit? * 11.265 What is the current in the 20-ahm resistor? *…

A:

Q: Why does the total emf of dry cells in series not equal the reading in the voltmeter?

A: The electromotive force is the measure of energy that is given to each coulomb of charge, whereas…

Q: How much power is produced with a 10 Volt battery delivering its current to a 10 Ohm resister?

A: Given : Voltage = 10 V Resistor = 10 Ohm Required : Power, P

Q: What voltage drop will be there across a 1 kw electric heater element whose resistance when hot is…

A: The electric power in terms of voltage and resistance is  P =V2R

Q: On what factors does the resistance of a conductor depend?

A: The property of a conductor by which it opposes the flow of the electric current through it is…

Q: A 20.0Ω resistor,R1, with a maximum power rating of 5.0W is to be connected in series to another…

A: The maximum current that is allowed to flow through the resistor is calculated by it power rating.…

Q: What is the maximum voltage and current a 10 kΩ, 0.25 W resistor can handle?

A:

Q: A certain medical device has a resistance of 2 kilo-Ohm and is rated for 20 Watts. What is the…

A:

Q: If 12- V battery supplies 1.90 A to a 2.74 resistor. What is its internal resistance ?

A: Given data:  Battery emf (E) = 12 V Current (I) = 1.90 A Resistance (R) = 2.74 Ω Required: Internal…

Q: What minimum number of 75-W lightbulbs must be connected in parallel to a single 120-V household…

A: Power rating of each bulb,  Voltage,  Current,

Q: How much power is dissipated by a 60 W (120 V) lightbulb when operated, using a dimmer switch, at…

A: P1=60 WV1=120 VV2=100 V

Q: A 100-W lightbulb connected to a 120-V source experiences a voltage surge that produces 140 V for a…

A:

Q: In the circuit given below, V= 120 V. Find the node voltages vy.12. and v3. 5 k2 50 V 75 V 2 6 A 10…

A:

Q: In the circuit shown, the resistor has a value of 821 kohms and the capacitor has a value of 49.9…

A: Required Time to charge

Q: Are household circuits normally wired in series or in parallel? Why?

A:

Q: Consider 3 resistors with resistances 1.15 × 102 Ω, 2.1 kΩ, and 3.8 kΩ. What would be their…

A:

Q: What is the maximum voltage that can be applied to a 10-k Ω resistor rated at 1/4W ?

A: Given data The resistance is given as R = 10 kΩ. The Power is given as P=14 W=0.25 W.   The…