How many electrons flow through a battery that delivers a current of 4.0 A for 12 s? 4.8 x 1015 4.0 x 1020 2.2 x 1020 O 6.4 x 1018 3.0 x 1020

Q: The figure below shows a battery connected to a circuit. The potential difference across the battery…

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Q: When a light bulb is connected to a 4.5 V battery, a current of 0.12 A passes through the bulb…

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Q: A charge of 4.00 C of charge passes through a pocket calculator’s solar cells in 4.00 h. What is the…

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Q: 18 V 16 0 25 Q 12 V 18 Q What is the magnitude of the current through the 12-V battery? O 0 67 A O…

A: Let Current Through lower loop is I1,12=18I1I1=1218=0.67 A

Q: A certain metal wire has a cross-sectional area of 1.0 cm² and a resistivity of 1.7 x 10-8. m. What…

A: Given data:   Area (A) = 1.0 cm2 = 1.0×10-4 m2 Resistivity (ρ) = 1.7×10-8 Ω.m Resistance (R) = 1.0 Ω…

Q: An electric oven has a resistance of 50.0 Q and a voltage of 220 V. How much current does it draw? O…

A: We know that the current is given as I = V/R. Here, V = 220 V R = 50 Ohm

Q: A 2002 load receives power from parallel-connected battery cells, as shown in the figure below.…

A: Equivalent emf, when two cells are in parallel Emf = E1×r2 + E2 × r1/(r2 + r1)  And the equivalent…

Q: The circuit below has three resistors. If the potential of the battery is 10.0 V, what is the…

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Q: The figure below shows a battery connected to a circuit. The potential difference across the battery…

A: To determine: The current in resistance 12 ohm. Formula used: when resistance in…

Q: A 50-@ resistor is connected to a 9.0 V battery. How much thermal energy is produced in 7.5 minutes?…

A: Given data:  Resistance (R) = 50 Ω Voltage (V) = 9.0 V Time (t) = 7.5 minutes Required: The thermal…

Q: 34.0 33.8 33.6 33.4 10 I (A) Figure shows the electric potential AV across the teminals of a battery…

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Q: A current of 2.5 A flows through a 10 ohm resistor for 1.5 minutes.  The number of electrons…

A: Current flowing through the resistor is I = 2.5 A Time of flow is t = 1.5 min

Q: When a potential difference of 12 V is applied to a wire 8.5 m long and 0.41 mm in diameter the…

A: Given : Potential difference, V = 12 V  Length, L = 8.5 m ; Diameter, D = 0.41 mm  Current, I = 2.8…

Q: A wire (length = 2.0 m, diameter = %3D 1.0 mm) has a resistance of 0.45 Q. What is the resistivity…

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Q: e current (in A) in the 12.0 0 resistor

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Q: When a 10 volt potential difference is applied to a resistance wire, 1.0x109 electrons pass through…

A: Given data: The potential difference, V=10 V Number of electrons, Time taken, t=80 s

Q: The figure below shows a battery connected to a circuit. The potential difference across the battery…

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Q: Three resistors and two batteries are connected as shown in the circuit diagram. 10 3V 10 0 10 What…

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Q: A 200 load receives power from parallel-connected battery cells, as shown in the figure below.…

A: R1 = 1 ohm R2 = 1 ohm Rload = 20 ohm V1 = 12 V V2 = 12 V Let the current passing through R1 = I1 in…

Q: A cell phone contains a battery rated at 2600 mA # h = 2.60 A # h. How many electrons can this…

A: Introduction: Current=ChargeTime Ampere is unit of current mA = milli Ampere is smaller unit of…

Q: A light bulb is rated at 30 W when operated at 120 V. How much charge enters (and leaves) the light…

A: Write a given values of this question. P=30WV=120Voltt=1min=1×60=60sec

Q: A silver wire 5 mm in diameter transfers a charge of 320-C in 70 minutes. Silver contains 5.8x1028…

A: d = 5 mm = 5 x 10-3 m r = d/2 = 2.5 x 10-3 m A = πr2 = 3.14 x (2.5 x 10-3)2 = 1.96 x 10-5 m2 Q = 320…

Q: If V = 20 V and the battery is ideal, what is the current through R3 in the %3D figure? R, = 10 N ||…

A: The equivalent resistance in series is  R = R' + R''  The equivalent resistance in parallel…

Q: Five resistors are connected as shown below, where R1 = 1.0 2. R2 = 2.0 2 & R3 = 3.0 2. R R R3 I R2…

A: Given that:- R1=1 ohm  R2=2 ohm  R3=3 ohm

Q: What is the resistance between X and Y? X 6 Ω 1402 2502 Y

A: Resistors 14 ohm, 8 ohm and 25 ohm are connected in series. Resistors 4 ohm, 5 ohm and 6 ohm are…

Q: What is the magnitude of the current in the 20-2 resistor?

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Q: A current of 6.0 A flows through an electrical device for 10 seconds. How many electrons flow…

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Q: If 3.0 x 1015 electrons flow through a section of a wire of diameter 2.0 mm in 2.0 s, what is the…

A: Given, n=number of electron=3×10^15 Time=2s

Q: How many electrons pass through a 20-W resistor in 10 min if there is a potential drop of 30 volts…

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Microscopic view of current

In physics, the term current is expressed as the rate of flow of electric charges across the area per unit time (I=q/t). It propagates along in the direction of the motion of positive charges. When the current is caused by the motion of electrons, the direction of the current is opposite to the flow.