An ideal battery has an emf of 14.3 V. If it is connected to a circuit and creates a current of 2.18A, what is the power delivered by the battery in units of Watts?

Q: One wire in a high-voltage transmission line carries 1 000 A starting at 560 kV for a distance of…

A: P=I2R

Q: The battery of an electronic device has an emf of 1.6V and internal resistance of 1.46ohm. How much…

A: The circuit is as shown in the above figureVoltage of the battery, VB = 1.6 Vinternal resistance, r…

Q: The potential difference across a resting neuron in the human body is about 62.0 mV and carries a…

A: Given Information:- Potential difference across a human neuron in the human body is  V=62…

Q: A solar cell provides an emf of 0.380 V. If the cell supplies a constant current of 18.0 mA for 9.00…

A: A solar cell provides an emf of 0.380 V. If the cell supplies a constant current of 18.0 mA for 9.00…

Q: You set up a simple circuit by connecting two resistors in series with a battery. The resistance of…

A: Given data:  Two resistors are connected in series  R1 = 240 Ω R2 = 321 Ω Itotal = 0.28 A

Q: A circuit loop containing an external resistor of value R = 25.0 (ohms) is connected to a real…

A: External resistance = 25 Ω  Internal resistance = 1.50 Ω Emf = 20 V

Q: On a sunny day, a rooftop solar panel delivers 60 W of power to the house at an emf of 17 V. How…

A:

Q: e potential difference across a resting neuron in the human body is about 75.0 mV and carries a…

A: Given data V=75 mV=75×10-3 V Current, I=0.2 mA=0.2×10-3 A

Q: A 50.7 ohm resistor is put into a circuit with a 16 volt battery. What is the power dissipated (in…

A:

Q: On a sunny day, a rooftop solar panel delivers 80 W of power to the house at an emf of 17 V.   How…

A:

Q: The efficiency for LED lightbulbs is typically about 90 lumens per watt (Im/W). Use Ohm's law to…

A:

Q: An electrical appliance draws 9.0 amperes of current when connected to a 120-volt source of…

A: It is given that,  Current, I=9 A The potential difference, V=120 V It is required to find the…

Q: the heating element on an electric heater dissipates 4.0 x 10^2 watts of power when connected to a…

A:

Q: A battery delivering a current of 55.0 A to a circuit has a terminal voltage of 23.9 V. The electric…

A:

Q: Two 75 W (120V) light bulbs are wired in series, then the combination is connected to a 120 V power…

A:

Q: An 1290 W toaster and an 803 W microwave oven are connected in parallel to the same 30.0 A, 120 V…

A:

Q: A human being can be electrocuted if a current as small as 52 mA passes near the heart. An…

A: Let V be defined as voltage, R be defined as the resistance, and I be defined as the current. Then…

Q: A blow-dryer and a vacuum cleaner each operate with a voltage of 120 V. The current rating of the…

A:

Q: A 9 V battery costs $1.49, and will run a portable CD player for 6 hours. Suppose the battery…

A: The objective of the question is to calculate the cost of the energy in dollars per kilowatt-hour…

Q: A 16.27 Ω resistor is connected to a battery that has an internal resistance of 0.76 Ω.  If the…

A: The expression for current through the resistor, I=∆VRI=11.08V16.27ΩI=0.68A

Q: A 60-watt light bulb shines at full power when it is connected to a constant power supply producing…

A: Given value--- power = 60 W . Voltage = 100 V . We have to find--- current ?

Q: A student set up a simple circuit with an ohmic lightbulb, battery and switch. When the switch is…

A: Given: initial voltage = V1= 4.2 V initial current = I1= 527 mA voltage = V2= ? V Final current =…

Q: You are given a 45.5 V battery and two resistors of resistances 25 Ω and 97.5 Ω.  Part (a)  Find the…

A: The objective of the question is to find the current and power dissipated in a circuit with two…

Q: ne wire in a high-voltage transmission line carries 1 000 A starting at 460 kV for a distance of 250…

A:

Q: A circuit consists of 3 branches. The first branch has a 44.2V battery. The second branch has a…

A:

Q: An immersion heater has a resistance of 5.0 ohms while drawing a current of 3.0 ampheres. What is…

A: Given data -The Resistance of the immersion heater is given as .The current drawn is given as I = 3…

Q: Your laptop has a power rating of 100 W. If your laptop represents a resistance of 1.91 kQ, what is…

A: Given data:  Power (P) = 100 W Resistance (R) = 1.91 kΩ = 1910 Ω Required: The maximum current (I)

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.