Two lamps need 50V and 2.0 A each in order to operate at a desired brilliancy. They are to be connected in series across a 120V line. What is the resistance of the rheostat which must be

Q: What is value of current is voltage is 5sin(100t) volt and load resistance is 5 ohm.

A: Given V = 5 sin(100t), R = 5 ohm Applying ohm’s law

Q: 3. Three resistors are connected in parallel across a current source of 8 amperes. If resistor A=…

A: KIRCHHOFF’S LAW KCL: The algebraic sum of all currents at a node is zero.           KCL is…

Q: Is there a limit to the series voltage a chain of these batteries can achieve?

A: we need to explain given statement.

Q: A cell has a terminal voltage that changes from 1.5 volts to 1.4 volts when a 10 ohm load is…

A: In this question,  A cell has a terminal voltage that changes from 1.5 volts to 1.4 volts when a 10…

Q: Draw a circuit  having two resistor (22ohms and 47 ohms) in series with a 10-volts power supply and…

A: To solve above problem, we can use either Ohm's law or Kirchhoff's law: Ohm's law state that in a…

Q: Could several panels be placed in parallel in order to increase the power of the system? What…

A: Yes, if numerous panels are connected in parallel, the system's power is increased. When solar…

Q: An electrician has two two-way switches (H-I-J and C-D-E in the diagram), a light bulb, and a power…

A: A two-way switch is a single pole double throw switch with three terminals. these terminals are…

Q: What is the ampacity of a #3 AWG Aluminum THWN if there are 3 of them that are considered current…

A: This question requires finding the ampacity of #3 AWG Aluminium THWN with 3 current carrying…

Q: What value of direct current must flow through a resistor to produce the same heating power as an…

A: Given: Peak value of the alternating current, Im=3.5 A

Q: what are two common types of variables resistors

A: The two common types of variables resistors are

Q: Fourteen 3-ohm resistors are available. Make a sketch showing how all resistors should be connected…

A:

Q: What is the maximum value of the variable ALPHA that will allow the channel 2 produce its maximum…

A: Given: All the lamps from Lamp 1 to Lamp 7 are designed to work with a nominal Voltage Vlamp=120…

Q: A consumer has a work area that he wishes to illuminate with single 80W, 220V tungsten fitting. The…

A: Given Data: P = 80 W V = 220 V Current rating of one switch = 10 A

Q: Question 25 Not yet answered In a parallel circuit 1.5 mAmps flows through a 600 ohm resistor. What…

A: Given, A parallel circuit with, Resistance, R=600 Ω. Current flow through resistor, I=1.5 mA.

Q: What is the formula to convert 7.8mA to volts? 4-20mA = 1-5 volts

A: In this question we discuss how you convert current into voltage.

Q: 4. A parallel DC aircraft electrical circuit has a 24 volt battery, a 2 ohm resistance, and a 16 ohm…

A: In this question, we need to determine the current flow in the circuit. We solve this problem using…

Q: What is factor of a cable at 5 degrees celcius when calculating resistance

A: The solution is provided in the following section.

Q: Which statement is TRUE about coulometry? a. There is only one circuit and all of the potentiometric…

A: What is true about coulometry ?

Q: For a given parallel circuit having resistance of 17 ohms, 12 ohms, 11ohms and a total voltage of 60…

A:

Q: N lamps are connected in parallel to a voltage source Vo as shown in the figure. Lamp #3 is not…

A: Number of lamps are N,SourceVoltage is Vo.These N lamps are connected in parallel to the source…

Q: A string of “holiday lights” contains 105 bulbs. The bulbs are connected in groups of 15 bulbs per…

A: A string of “holiday lights” contains 105 bulbs. The bulbs are connected in groups of 15 bulbs per…

Q: If more resistors were added to a circuit, what would happen to the current? Does the voltage of the…

A: In this question it is given If more resistors were added to a circuit, what would happen to the…

Q: Two heating units A and B are connected parallel across a 120-volt supply. Unit B takes twice as…

A: Given

Q: What advantage does a 4 inch octagon box have over a 3 1/4 in octagon box

A: An Octagon box is a general type of electrical switch box, which is commonly utilize for installing…

Q: What is the multiplying power of a shunt of 200 ohm resistance when used with a galvanometer of 1000…

A: Given, Meter resistance, Rm = 1000 ohm Shunt resistance, Rsh = 200 ohm

Q: A 12-V DC automobile head lamp is to be used on a fishing boat with a 24-V power system. The head…

A: Given     Rating of lamp ,P = 50W Voltage rating of lamp ,VL= 12V Available Voltage, V= 24 V

Q: Every PV module is usually affected by the following except

A: Here i have answered this question.

Q: 3. Do batteries last longer in series or parallel

A:

Q: many milllamperes of TIOw througn a circu With a 40 source and 6.8 kQ of resistance? *

A:

Q: A voltage sources an IR drop across a 20 ohms R1, 60 volts across a 30 ohms R2, and 180 volts across…

A:

Q: Why is current and voltage in phase when two resistors are connected in series? explain in full…

A:

Q: First Approximation: Total Current = A Total Resistance = ohms Voltage across R1 volt %3D

A: First solve the network by using diode as a 0.7 Volt battery then find the current and rest…

Q: ܘ ܞ ܥ 5V R2 2K D3 D1 Determine the current flowing through the resistor R2. (assume LED forward…

A:

Q: Which of the following statement is NOT applicable to series circuit? a. Different resistors have…

A: The detailed answer is solved below according to the given parameters and instructions in the…

Q: Do batteries last longer in series or parallel?

A: In parallel circuits, current is of different values while voltage remains same. In series circuits,…

Q: What is a clamp-on ammeter and what electrical principal does it operate

A: we need to answer What is a clamp-on ammeter and what electrical principal does it operate

Q: Why it is preferable to connect bulbs in parallel rather than series? Explain your answer.

A: here they are asked about why the bulbs are connected in parallel rather than series ? first we have…

Q: Acar lot uses incandescent lamps to supply outside lighting during the night. There are three…

A: fig:  circuit for given lightning system  From above circuit total…

Q: 40. A variable resistor with three terminals is called a a. potentiometer b. rheostat c. multiturn…

A: We need to select correct option for variable resistor .

Electrical Heating Unit

The conversion of electrical energy to heat energy is known as electric heating. The heating system that converts the electrical energy to heat energy for various application is called electrical heating unit. Electricity is employed as the firing mechanism in electric heating systems, which transforms electric current to heat. Electric heaters have heating elements in the form of electric resistors.