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: A 9V battery is connected to two parallel plates that are separated by 2cm of air. What is the…

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Q: What is the total internal resistance of an ohmmeter with a 1mA meter movement and having a 5VDC…

A: Given data: I=1 mAVB=5 V

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: Fill in the blanks / Tuenti volts Given the circuit below, calculate the voltage drop across R1 when…

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

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Q: What are the internal resistance and voltage rating of a 45 W an electric kettel that draws 3.7 A O…

A: Rated power of kettle, P=45 W. Current drawn, I=3.7 A.

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

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Q: Ammeter reading?

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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: 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 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: 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: What is the current through the LED? * R1 330 kOhm LED1 V1 LED_red 6 V A) OmA B) 23 mA C) 13 mA D)…

A: The solution is given below

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

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Q: What is the color of 47K ohm resistor with tolerance of +/-10% O a yellow -violet-orange-gold O b.…

A: Given  R = 47k ohms

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 moving iron voltmeter reads 250v when connected to 250v dc .if connected to 250v 50 Hz .the…

A: Moving iron instrument reads true rms value of voltage. For DC voltage, rms value is equal to dc…

Q: What voltage drop will be there across a 1 kW electric heater whose resistance when hot is 40 2? 150…

A: Given a electric heater having, Power rating, P = 1 kW Resistance, R = 40 Ω

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: 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: 30n |Oov (I 150 250

A: Determine total resistance and total current for the given circuit .

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

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Q: ) Suppose you tried to measure the voltage at all three test pointy in the figure 1 below with an…

A: Voltmeter and ammeter is a voltage and current measuring instrument. Ideal voltmeter have infinite…

Q: The capacitor has been added to the load in the circuit shown in figure below to maximize the power…

A: In this question we need to find a value of capacitance so that maximum power transfer to load.

Q: Question 2 Determine number of electrons transferred when a current of 5mA flows a fixed point for…

A: Given data, Current, I=5 mA Time t=10 minutes

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…

Q: Number of electrons in 1 Coulomb charge is a) 6.25*1021 b) 6.25*1020 c) 6.25*1025 d) 6.25*1023

A: Given that  Q= 1 C  Althouigh formula of charge is given by

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.