If the cost is 144.7 c/KWh compare its cost to run LED and incandescent light per 10 hours

Q: note on: (i) (ii) Electric current Resistivity

A: According to question we need to write short note ? on electric current and resistivity.

Q: How do low energy light bulbs work as fluorescent lamps?

A: The provided question can also be inferred as why and how a fluorescent lamp works even in low…

Q: zero signal collector current

A:

Q: Compute the energy consumed by a 13-W compact fluorescent bulb burning for 1.0 h, and compare it to…

A:

Q: A beam of singly ionized helium is injected into the velocity selector at right. The electric field…

A: Charge of helium=+q  (singly ionized)E=25 kN/C =25×103 N/Cv=0.05cc=3×108 m/s

Q: determine if is an ohms material or non-ohms

A:

Q: Only a small amount of the energy used in an incandescent light bulb (regular bulbs commonly used in…

A: It is true that only small amount of incandescent light is actually converted into light the rest of…

Q: An amplifiier produces an output of 7 volts when the input signal is 0.15 volt. Find the decible…

A: The decibel voltage gain of an amplifier is given by:  Voltage gain = 20 ×logAudio outpout…

Q: Why are all compact fluorescent lamps more efficient than incandescent lamps?

A: All compact fluorescent lamps more efficient than incandescent lamps because of the following…

Q: Assuming a 7W LED is 100% efficient at converting electricity into light and emits the same amount…

A: solution of above question given in below step.

Q: Define LED(light emitting diode).

A:

Q: An electric bulb s a cUIent of 0.26 A fun 28 munutes.Calcu.late the amount of electsijc change That…

A:

Q: 3. The power developed by the 5A source 40 V is: 10A 100 V

A: As there are multiple question ,so as per guidelines ,solution for 3 rd question is given below…

Q: Digitized signals are represented by

A: In most digital circuits, the signals have two values. These signals is called logic signal signal…

Q: What is the significance of the colored bands on resistors? What happens to current when resistance…

A: Understanding the significance of colour bands on resistors - While manufacturing the resistors, if…

Q: What is the difference between incandescent bulbs, fluorescent and LED light bulbs?

A: To differentiate between between incandescent bulbs, fluorescent and LED light bulbs.

Q: A school classroom having a general dimension of 20 ft x 40 ft is to be lighted at an average…

A: The number of fixture is calculated by using the given expression below. Here, L, fc, A represent…

Q: If you have a 2pc battery and a 6w led, how many does the battery discharge per hour? per battery is…

A: The discharge value is given by the  capacity  of battery (in Ah) divided by the number of hours it…

Q: what does the resistor do to the electrons or current

A: The velocity of the electrons is given by something called drift velocity. It too depends on the…

Q: current flows

A:

Q: The photo-gates are connected to Pasco Universal Interface. Select one: O True O False

A: yes the photo gates are connected to the pasco universal interface.

Q: A portable x-ray unit has a step-up transformer, the 120 V input of which is transformed to the 100…

A: Given data The input voltage is V1=120 V The needed output voltage is V2=100 kV The number of loops…

Q: Compute the cost per day of operating a lamp that draws a current of 1.80 A from a 110 V line.…

A: It is given that

Q: Why led bulb best than CFL?

A: CFL or Compact fluorescent lamps were used in place of tungsten bulbs for long time. They work by…

Q: Give advantages and disadvantages of filament pyrometer.

A: Advantages of filament pyrometer are:

Q: Half - wave rectifier consists of center-tapped transformer attached with two diodes O True False

A: Half wave rectifiers are used to convert only one part (positive or negative) from an alternating…

Q: In an optical fiber, is not a transparent medium. Select one: O a. coating O b. cladding core O d.…

A: Option (a) is correct.

Q: A pair of closely spaced platinum discs in a vacuum tube are connected to a DC power supply and an…

A:

Q: The filament of a bulb glows due to?

A: The filament of an electric bulb glows because of the heating effect of electric current. As the…

Q: Assume that there are 20 luminaires that include 4×14W fluorescent lamps in your office. If you…

A:

Q: Describe how to a 15-W compact fluorescent lamp provides as much light as a 60-W incandescent lamp.

A: compact  fluorescent lamp

Q: A solar cell, 3.0cm square, has an output of 350mA at 0.80V when exposed to full sunlight. A solar…

A: If the cells are connected in series, the voltage adds and the number of cells required in the row…

Q: Wave your hand back and forth between your face and a fluorescent light bulb. Do you observe the…

A: If you wave your hand back and forth between your face and a fluorescent light, you will see a…

Q: If the cost is 144.77 c/kWh compare how much would it cost to run LED and Incandescent lights for 10…

A: The energy consumed can be expressed as E=Pt

Q: nvolves contact O nduction 1plarzation O gravily

A: Induction charging is a method used to charge an object without touching the object to any other…

Q: Half wave rectifier consists of center-tapped transformer attached with two diodes O True O False

A: 1. FALSE Explanation: A half-wave rectifier consists of the following components: Alternating…

Q: Calculate the number of kilowatt-hours (kW-hrs) consumed in a week by two 13-Watt LED light bulbs…

A: Given data: Power (P) = 13 W Number of hours per day = 3 hours / day Number of LED bulbs = 2…

Q: Incandescent light bulbs are being replaced with more efficient LED and CFL light bulbs. Is there…

A: When the filaments of incandescent bulbs are heated to elevated temperatures, incandescent bulbs…

Q: 3. Discuss: The amount of current flow (number of electrons) and the kinetic energy of the emitted…

A:

Q: In Davy's safety lamp a copper gauze is used. Why?

A: Davy’s safety lamp was used in flammable environment such as coal mines. The lamp consists of a…

Q: ᴄᴀʟᴄᴜʟᴀᴛᴇ ᴛʜᴇ ᴘʀᴇꜱꜱᴜʀᴇ ᴅʀᴏᴘ (ɪɴ ᴋᴘᴀ) ɪɴ 100 ᴍ ᴏꜰ ʜᴏʀɪᴢᴏɴᴛᴀʟ 20-ᴄᴍ-ᴅɪᴀᴍᴇᴛᴇʀ ᴘɪᴘᴇ ᴍᴀᴅᴇ ᴏꜰ ɴᴇᴡ ᴡʀᴏᴜɢʜᴛ…

A:

Q: The electrons could be produced by a filament or ionization of a small quantity of gas vacsum glass…

A: Electron ionization (EI), formerly known as electron impact, is  an ionization method in which…