A microwave oven running at 65% efficiency delivers 950 Wto the interior. Find (a) the power drawn from the source,and (b) the current drawn. Assume a source voltage of 120 V.

Q: A 300-volt electromotive force is applied to an RC-series circuit in which the resistance is 500…

A: Voltage = 300 v  Resistance R = 500 ohm  Capacitance c = 5 micro frade

Q: A toaster has a heating element of resistance Ro=10.0 2 at To=20 °C. The resistance increases to…

A: Given: Toaster initial resistance, R0=10 Ω at temp. T0=20 °C Toaster resistance increased value,…

Q: When initially at 25 C, the power being supplied to a 555 Ohm resistor in a circuit is 7.5 W. Over…

A:

Q: How much electrical energy (in kilowatt hours) would a 45.0 W light bulb use in 60.0 days if left on…

A: Given that                     The power of the bulb is (P) = 45W                      Time = 60days…

Q: What resistance values can be createdby combining a 1 kΩ resistor and a 10 kΩ resistor?

A:

Q: We have referred to resistorsdissipat-ingheat, i.e., we have assumed thatP=I∆V is always greater…

A: Question :       We have referred to resistors dissipating heat, i.e., we have assumed that P=I∆V is…

Q: A silver wire of radius re 0.5 mm and resistance 0.06 a ix connected to a voltage source of I.7 mV…

A: Given data: Radius, r=0.5 mm=0.5×10-3m Resistance, R=0.06 Ω Voltage, V=1.7 mV=1.7×10-3V Charge…

Q: Write a mathematical relation for E (Stored Energy) in terms C (Capactiance) and V (Voltage)

A: Here we have to Write a mathematical relation for E (Stored Energy) in terms C (Capactiance) and V…

Q: A current of 1.78 A fHows through a 58.2 2 resistor for 9.1 min. How much heat was generated by the…

A: Given data:  Current (I) = 1.78 A Resistance (R) = 58.2 Ω Time (t) = 9.1 min Required: Heat…

Q: 1. 1000 400 0 200 0 7v

A:

Q: Consider a series RC circuit as in Figure below for which R =4.9 MQ, C=2 µF, and ɛ=30.0 V. Find the…

A: The given resistance R=4.9 MΩ=4.9×106 Ω The given potential ε=30 V At the moment the switch is…

Q: The heating element of a coffeemaker operates at 120 V and carries a current of 7.70 A. Assuming the…

A:

Q: A 500-W heating coil designed to operate from 110 V ismade of Nichrome wire 0.500 mm in diameter.(a)…

A:

Q: If the current in a 330 W resistor s 15 mA, the applied voltage is approximately ____?

A: Given data: Power (P) = 330 W Current (I) = 15 mA Required: Voltage (V)

Q: An immersion-type heating coil with a resistance of 13 ohms is connected to a 120 V outlet and…

A: Given:  R = 13 ohm  V = 120 V  mass, m = 250 mL = 250 g = 0.25 kg  T = 10 degree C  T' = 100 degree…

Q: The p.d across a 4 ohm resistor is 20v. Assuming all the energy dissipated by this resistor is in…

A:

Q: The time, in seconds, for the current through a 652-ohm resistor in an RC circuit, with an initially…

A:

Q: A JFET has a specified pinch-off voltage of 5 V. When VGs = 0, what is Vos at the point where the…

A: Given,  Pinch off Voltage VP = -5 V  But VGS = 0  As we know from VDS and ID characteristics,  In…

Q: Thermal energy is produced in a resistor at a rate of 150 W when the current is 3.50 A. What is the…

A:

Q: Real resistors can only be manufactured to a specific tolerance, so that in effect the value of the…

A: The current flowing the element is I = 1 A. The resistance of the resistor is 5.4 kΩ or 5400 Ω with…

Q: Given that the delivered power to a resistor is equal to P when the current flowing in the resistor…

A: We have to use some basic formula here.

Q: oduced in a resistor at a rate of 81.1 W w

A: Rate of thermal energy = P = 81.1 w Current = i = 3.58A Resistance = R = ?

Q: A heater is rated to dissipate 2880 W when connected to a 120 V source. The current drawn by the…

A: Given P = 2880 W V = 120 Volts We have  P = V*I

Q: Compute the electrical energy consumed in Joules if a toaster of 50 W is used 2000 seconds ?

A: Introduction :  In this question we are provided with value of  power and time.  with these data we…

Q: A component with a 2-Ω resistor is rated for use at power levels not exceeding 15 W. How much…

A:

Q: A 3.33@kΩ resistor is connected to a generator with a maximumvoltage of 241 V. Find (a) the average…

A: The rms voltage can be obtained as Vrms=Vmax2=241V2=170.41V

Q: Typically given as IDSS = 10 mA and VGS(off) = -8 V for a JFET. Using these values, determine the…

A:

Q: A copper wire is 2.50 m long and has a diameter of 2.5 mm. How much current will it draw when…

A:

Q: If a resistor placed across a 20V source absorbs 420J of energy in 7minutes, what is the value of…

A: Given that:- E=20VP=4207×60=1 J/sR=?   Since, P=E2R

Q: Given that the delivered power to a resistor is equal to P when the current flowing in the

A: Resistors are electrical components that will try to stop the circuit's current flow. This will…

Q: If the charging current when measured was 0.35 Ampere at t = 2.5r, where t is the time constant,…

A: We know thatI=I0e-(t?)HereI=Current at time tI0=Intial current?=time constantt=time

Q: The resistance of electric heater is 75 Ohm when connectedto 120 V What is the power consumption of…

A: Given that :Resistance of the electric heater (R) = 75 ohmVoltage ( V) = 120 VPower consumption (P)=…

Q: A coil of 400 turns is wound uniformly on an annealed steel core with a mean-circumference of 0.2 m…

A:

Q: If a spherical capatictor, filled with Mica, is in a connected series with a resistor of 600kohms…

A: The dielectric constant (k) of mica is 6. If a and b are the inner and outer radii of the spherical…

Q: A 1.59-V mercury cell with a capacity of 2.0 A*h is used to power a cardiac pacemaker. if the power…

A:

Q: A circuit design calls for a 1.5-kΩ resistor to have 4.7 V across its terminals. What would he the…

A: Current i=voltage/resistance  Voltage=4.7volt Resistance=1.5×10^3 Ohm=1500 Ohm  So i=4.7/1500…

Q: A heating element in a stove is designed to dissipate3.00 x 103 W when connected to 240. V. (a)…

A: Given data:Power of the element, P = 3.00 x 103 WVoltage, V = 240 V

Q: What is the % conversion efficiency of a battery charger that inputs 22 W and outputs 1100 mA at 12…

A: The output power is Pout=VI=12 V1.1 A=13.2 W

Q: A fish-tank heater is rated at 95 W when connected to120 V. The heating element is a coil of…

A: The given:-The heating element is a coil of Nichrome wire A fish-tank heater is rated at 95 W.  the…

Q: A microhydro power system has a turbine, generator and voltage régulator which provides electrical…

A: Given: The efficiency of the turbine is 93.5%. The efficiency of the generator is 87.6%. The…

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.