Membrane walls of living cells have surprisingly large electric fields across them due to the separation of ions. What is the voltage across an 8 nm-thick membrane if the electric field strength is 5.5 MV/m?

Q: An electron is moving in vacuum in a region in which electric fields are present. Its speed at point…

A: (given) Point A and B are the two point charges. Potential at point A is 20 V Speed of electron at…

Q: I5.0 x 10 electrons pass through a 63.2 0 resistor in 10 min, what is the potential difference…

A: The charges are said to be quantized and are given as an integral multiple of unit electric charge,…

Q: A cell membrane is 7.0 nm thick, with a 70 mV potential difference across the membrane. What is the…

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Q: If 5.0 x 1021 electrons pass through a 42.3 2 resistor in 10 min, what is the potential difference…

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Q: (LO-4) The following Wheatstone Bridge where R1 = 60 Q, R2 = 40 Q and R3 = 150 Q is constructed. A…

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Q: The space between the conductors of a long coaxial cable, used to transmit TV signals, has an inner…

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Q: Students in an introductory physics lab are producing a region of uniform electric field by applying…

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Q: Volume charge density within the operating region of a parallel-plate vacuum diode is given by p =…

A: Given data: The volume charge density is ρ=-49ε0V0d-4/3x-2/3. The values of constant are, V0=40 Vd=1…

Q: In the figure below, & = 3.00 V, &, = 1.00 V, R = 5.00 2, R2 = 4.00 2, R3 = 2.00 2, and both…

A: Given that:- Value of resistance of the resistors are given in the question.

Q: The dielectric constants of SiO2, Si3N4, and Ta2Os, are about 3.9, 7.6, and 25, respectively. What…

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Q: Given a cylindrical conductor of radius 1.50 mm with current density 2.50A/m^2 and free-electron…

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Q: Q2) Magnitude of the drift velocity of conduction electrons in a copper wire is 7.84 x 104 m/s and…

A: Given: vd=7.84*10-4 m/sn=8.46*1028 /m3ρ = 1.72*10-8 Ω.m

Q: If a = 30 cm, b = 20 cm, q = +8.9 nC, and Q = -2.4 nC in the figure, what is the potential…

A: The given data are: a=30 cm=0.3 mb=20 cm=0.2 mq=8.9 nC=8.9×10-9 CQ=-2.4 NC=-2.4×10-9 C

Q: AV R 5. A Battery of V = 9V, Resistor with R = 50, and capacitor of C are connected as shown in the…

A: Given:- V= 9v R= 5 Ω t= 7.2 sec

Q: 4. 400 V V (V) I (A) R (0) 1 R₁ = 50092 2 3 R=6000 S ww R₂ = 150002 4 5 6 www = 500 Ω AM R4= R,=…

A: Using parallel and series combination formula of resistance calculate equivalent resistance.Then…

Q: The temperature near the center of the Sun is thought to be about 15 million degrees Celsius.…

A: Given: The temperature of the center of the Sun is 15 million degrees Celsius.

Q: Two capacitors of capacitance C1 = 100 nF and C2 = 5 μF are connected in parallel across a cell with…

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Q: If a = 30 cm, b = 20 cm, q = +9.3 nC, and Q = -6.6 nC in the figure, what is the potential…

A: The given data are: a=30 cm=0.3 mb=20 cm=0.2 mq=9.3 nC=9.3×10-9 CQ=-6.6 nC=-6.6×10-9 C

Q: In the figure &1 = 4.21 V, 82 = 0.945 V, R = 4.11 0, R2 = 2.36 0, R3 = 4.71 Q, and both batteries…

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Q: The temperature near the center of the Sun is thought to be 15 million degrees Celsius (1.5 × 107…

A: The system gains internal energy when it is subjected to temperature. When the potential is applied…

Q: The temperature near the center of the Sun is thought to be 15 million degrees Celsius (1.5×107 ºC)…

A: The expression to determine the voltage,

Q: What is the potential difference ( in volts) across C2 when C, = 5.0 µF, C2 = 15 µF, C3 = 30 µF, and…

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Q: Two 3.0 cm diameter aluminum electrodes are spaced 0.50 mm apart. The electrodes are connected to a…

A: Explanation of the formula ; Area of cylindrical wire: A=πr2                           Here,…

Q: The temperature near the center of the Sun is thought to be 15 million degrees Celsius  ⎝1.5×107ºC⎞…

A: Given: The temperature near the center of the sun is T=1.5×107 ⁰C. The expression for the…

Q: A coaxial cable used in a transmission line has an inner radius of 0.15 mm and an outer radius of…

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Q: A coaxial cable used in a transmission line has an inner radius of 0.14 mm and an outer radius of…

A: Data Given ,  Inner radius ( a ) = 0.14 mm Outer radius ( b ) = 0.54 mm Dielectric constant ( k ) =…

Q: Q2) Magnitude of the drift velocity of conduction electrons in a copper wire is 7.84 x 104 m/s and…

A: Resistivity of copper wire, rho = 1.72×10^-8 Ohm.m Charge on electron, e = - 1.6 × 10^-19 C

Q: 16.10b (b) Determine the maximum voltage that can be applied to a Teflon-filled parallel-plate…

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Q: The voltage across a membrane forming a cell wall is 84.0 mV and the membrane is 8.40 nm thick. What…

A: If a voltage V is applied across the distance l then the electric field strength is given by E=Vl In…

Q: The electric field inside a 60 cmcm -long copper wire is 1.2×10−2 V/m. What is the potential…

A: electric field inside a 60 cmcm -long copper wire is 1.2×10−2 V/m.

Q: The metal sphere of a small Van de Graaff generator illus- trated in Figure 15.23 has a radius of 18…

A: The maximum potential of the sphere can have before breakdown occurs is

Q: 2.00-uF capacitor? (c) What is the current in the resis capacitor? (b) How much charge remains on…

A: Answer:-  Given  Potential (V) = 12 V  Capacitor (C1) = 3.00 uF  Capacitor (C2) = 2.00 uF…

Q: Q2) Magnitude of the drift velocity of conduction electrons in a copper wire is 7.84 x 10-4 m/s and…

A: Electric field can be expressed as in terms of mobility and drift velocity,

Q: A capacitor is fully charged to 24 V and then connected between points A and B in the figure,with…

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Q: The voltage across a membrane forming a cell wall is 78.7 mV and the membrane is 8.52 nm thick. What…

A: Given data:  Voltage (V) = 78.7 MV = 78.7×10-3 V Thickness (d) = 8.52 nm = 8.52×10-9 m Required: The…

Q: The electric field inside a 30-cm-long copper wire is 0.010 V/m. What is the potential difference…

A: E = 0.01 V/m dx = 30 cm = 0.3 m

Q: When is the potential difference across a capacitor an emf?

A: Voltage across a capacitor.

Q: Figure (a) gives the magnitude E(x) of the electric fields that have been set up by a battery along…

A: Given data The length of the rod is L = 9 mm The vertical scale of electric field is: E2 = 3.20 x…

Q: What is the potential difference ( in volts) across C2 when C, = 5.0 µF, C2 = 15 µF, C3 = 30 µF, and…

A: C1= 5 uF C2= 10 uF C3=15 uF   Vo=90.8 volts

Q: The circuit in Figure P28.43 has been connected for a long time. (a) What is the potential…

A: Given data: The resistances are, R1=1 ΩR2=4 ΩR3=8 ΩR4=2 Ω The voltage of battery is V=10 V.

Q: If 5.0 x 1021 electrons pass through a 39.4 Q resistor in 10 min, what is the potential difference…

A: Given: Resistance, R=39.4 Ω No. of e-s, n=5×1021  Time, t=10 min=10×60=600 sec Electronic charge,…

Q: Membrane walls of living cells have surprisingly large electric fields across them due to separation…

A: We know,The voltage, V = Electrc field, E  x   Thickness, d

Q: In Kirchoff's experiment, If we measure l = 0.2 mA, I2 = 0.3 %3D mA, and R1 = R2 = R3 = 5000 Ohm…

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Q: If an uncharged parallel-plate capacitor (capacitance C) is connected to a d(pm) battery, one plate…

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Q: art 3 Voltage, V Plate Separation, d = _3.0mm = 1.5V Page ollege Physics Table C Plate Area, A…

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.