How many does the battery discharge every hour if you have a 2pcs of battery and 3w led Battery =3.7V 2,600mAh

Q: Find the current flows through the red LED when it glows. R. 330 n + V LED red 6 V 0.18 mA 18 mA 55…

A: When led is on then I current is following in the circuit.

Q: The number of free electrons passing through the filament of an electric lamp in one hour when the…

A: Given, Current through filament, I=0.32 A Time, t = 1 hour = 3600 second Charge on electron,…

Q: (b) Solve the circuit in Figure Q2(b) at terminal a-b using Thevenin's Theorem. i) Analyze the…

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Q: 60W-100V tungsten lamp has a resistance of 20 ohm at air temperature (0◦C). What is the  rise in…

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Q: 9. Using three bands, show the color code of 6M2 resistor with 20% tolerance. 10. See the following…

A: We have to show color code for 6 MΩ resistor with 20% tolerance using 3 bands. By using the…

Q: D1 R1 5V 1K Determine the voltage at resistor R1 if the Zener voltage is 3V. *

A: The given circuit is:

Q: What is the circuit used for? What is the measuring device in this circuit measuring?

A: The given circuit arrangement is shown below.We need to tell the use of the circuit and the name of…

Q: 7. A battery with an internal resistance of 1.5 ohm is connected in series with resistors R₁ = 3 ohm…

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Q: A voltmeter has a resistance of 100 ohm what will be it's reading when it is connected across a cell…

A: Given, A voltmeter has a resistance of 100 ohm. It is connected across a cell of emf 2 V and…

Q: +18V 1.8kO 390kn 15kn B2 =100 B1 =200 5600 1k0. 20µF 20µF 1kO HE

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Q: If the turn ratio of a step-up transformer is 1:15 and the full-load secondary current is 300 A, the…

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Q: 15V battery is connected to two parallel plates that are separated by 5cm of air. What is the…

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Q: So how many hour does the 2 batteries will work on 6watts led light

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Q: Ammeter reading?

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Q: The source volage is 12 Volts. ASSUME THE SWITCH IS CLOSED. 2202 R1 R2 1kN R4 R3 2502

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Q: Q2. A three phase full wave uncontrolled bridge rectifier has an AC input voltage of 90 V RMS at 60…

A: Given data, Supply RMS voltage Vr=90 V. Frequency f=60 Hz. Load resistance RL=440 Ω.

Q: 3. Determine the value of the current given the forward voltage drop of the LED is 2.1V and R=100…

A: Voltage drop across LED = 2.1 V Battery voltage = 9 V Therefore, voltage drop across resistance = 9…

Q: Determine the p.d. which must be applied to a 13.5 k resistor such that a current of 75.8 mA may…

A: By ohms law ,  Potential difference (P.d)= current (I) ×Resistance (R)  Given current = 75.8 mA and…

Q: LED lamp rated 9 W is on for 30 minutes and TV of 60 W is on for 2.5 hours. How much energy has been…

A: Power of LED lamp Time for which LED is on Power of TV Time for which TV is on.

Q: How to draft this circuit digram in a breadboard?

A: The given circuit diagram is shown below.

Q: How many states will there be in a 4-bit ripple counter?

A: In an n-bit counter, the total number of states = 2n.

Q: 10. What should be the resistance of R1 in order to have a 10 V voltage drop in the output terminal…

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Q: How much resistance is required to limit the current to 1.5 mA if the potential drop across the…

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Q: The battery with a 1400 mAh can supply 2.8 Ampere current for: O 60 minutes O 30 minutes O 100…

A: Given- Battery capacity = 1400 mAh Supply current, I=2.8 A.   To find- Time duration.

Q: which of the following does not increase resistance.

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Q: A 200 ohms resistor is conected to a 1.5V battery a. how much current flows through resistor b.…

A: Given: 200 ohms resistor is connected to a battery whose voltage is 1.5 volts.

Q: The hot resistance of a 250V filament lamp is 625 ohms.determine the current taken by the lamp and…

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Q: FIND: 11 12 Id2 ID2 Si Si 5.6K 3.3K 11

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Q: Determine the color-coding of these resistors: 290k, 560k, 200M, 2M2, 4K5, 5R6 1) Using 4 bands with…

A: to determine the color coding of these resistors: 290K, 560K, 200M, 2M2, 4K5, 5R6 1) using 4 bands…

Q: The power supply voltage for a circuit must vary by no more than 50 mV from its nominal value of 1.8…

A: given: supply voltage may vary by 50 mV Nominal value = 1.8V So tolerance specification = (1.8-0.05)…

Q: What is the voltage when current is 5 A and resistance is 88 ? Do NOT include units Round your…

A: for determine voltage  we use ohm's law it is given as when pressure and temprature is constant then…

Q: The current flow in the FET device is only due to the carriers.

A: Current flow in the FET devise is only due to the ....... Carrier

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: How many hours does the 2batteries will work in 6w LED IF EACH OF THE BATTERY IS EQUAL TO 3.7V AND…

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Q: The number of free electrons passing through the filament of an electric lamp in one hour when the…

A: Given: Time, t = 1 hour = 3600 sec. Current through filament, I=0.32 A Charge on electron,…

Q: How would you construct a battery pack that could supply 6V and 7A using D or AA alkaline batteries?

A: It is asked to construct a battery pack that could supply 6 V and 7 A using D or AA alkaline…

Q: Finding the voltage for 5kilo ohm and 10kilo ohm

A: IT is the total current flowing in the circuit: a) To calculate IT apply KVL in the given circuit:…

Q: There are 5005 electrons in an assembly. What will be total charge in coloumb?

A: Electrons are negatively charged particles and the charge of a single electron can be expressed as…

Q: rules to find the electric current in each resistor of the

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Q: A 3 V Duracell battery is connected across a lamp of 1 ohm resistance. How much power will be…

A: In a purely resistive circuit, if E represents the voltage applied across a resistor of resistance…

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.