A neuron in your brain sends a charge down an 80 cm long axon (a long skinny thing) toward your hand at a speed of 10 m per second. At the time when the charge reaches your elbow, the voltage in the axon is −70 mV except on the 6cm long piece between 47 and 53 cm from your brain. On this piece, the voltage is v(x) =−70.0 + 10.0[9.0 − (x − 50.0)²] where v(x) is the voltage at a distance of x centimeters from the brain. a. How long will it take the information to get to your hand? How long did it take to reach your elbow? b. Sketch a graph of the voltage along the whole axon. c. Find the average voltage of the 6 cm piece. d. Find the average voltage of the whole axon.

Q: Two straight conducting rods, which are e = 1.0 m long, exactly parallel, and separated by d = 0.95…

A: Given that, l=1 md=0.95 mm=0.95×10−3 mRE=17ΩRT=0.5ΩRB=2.5Ωm=25g=0.025 kg

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A: Given that:A=30.0 cm2=30.0 ×10-4 m2d=9.00 mm=9.00×10-3 mk=3.00V=7.50 Vεo=8.85×10-12 C2/Nm2

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Q: A 13 μF capacitor has a charge of 41 μC. How much energy in (μJ) is stored in this capacitor?…

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Q: Two capacitors, 4.7 microF and 5.6 microF, are connected in parallel. If a 9 volt battery is to be…

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Q: If a = 30 cm, b = 20 cm, q = +6.3 nC, and Q = -6.7 nC in the figure, what is the potential…

A: Given data: The charges are, q=6.3 nCQ=-6.7 nC

Q: If a 30 cm, b = 20 cm, q = +9.8 nC, and Q = -3.4 nC in the figure, what is the potential difference…

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Q: Consider the following. (Letc, = 48.60 p and C2 = 42.60 µF.) 6.00 µF 9.00 V (a) Find the equivalent…

A: Given: C1 =48.60 μF, C2 =42.60 μF, V=9.00 V

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A: The given data are: q=8.4 nC=8.4×10-9 CQ=-9.2 nC=-9.2×10-9 Ca=30 cm=0.3 mb=20 cm=0.2 m

Q: A solid cylindrical conductor of radius 2.1 cm is coaxial with a cylindrical shell of negligible…

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Q: What is the potential difference ( in volts) across C2 when C1 = 5.0 µF, C2 = 15 µF, C3 = 30 µF, and…

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Q: Find the total energy stored (in units of mJ) in the group of capacitors shown below given that the…

A: Find the total energy stored ( in units of mJ) in the group of capacitors shown below given that the…

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A: Given- Capacitor C= 14 μF  Charge Q= 87 μC

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Q: How long does it take a capacitor with time constant τ=3.0 seconds to charge to 76% of its maximum…

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Q: How much energy is present across the plates of capacitor #1 (C1)? Select one: a.103.68 micro…

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Q: What is the potential difference ( in volts) across C2 when C1 = 5.0 µF, C2 = 15 µF, C3 = 30 µF, and…

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Q: In open-heart surgery a small amount of energy will defibrillate the heart. (a) What voltage is…

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Q: During a lightning discharge, charges amounting to 30C move through a potential difference of 1.0 x…

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Q: If a = 30 cm, b = 20 cm, q = +5.2 nC, and Q = -6.5 nC in the figure, what is the potential…

A: a = 30 cm = 0.3 m b = 20 cm = 0.2 m q = 5.2 nC Q = - 6.5 nC

Q: final charge (in µC) of the capacitor

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Q: A solid cylindrical conductor of radius 2.1 cm is coaxial with a cylindrical shell of negligible…

A: A solid cylindrical conductor of radius 2.1 cm is coaxial with a cylindrical shell of negligible…

Q: Here, C1 = 1.60 μF, C2 = 3.20 μF, C3 = 6.40 μF, and X = 23.5. What is the equivalent capacitance…

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Q: What amount of voltage is present across capacitor #2 (C2)?   Select one: a. 6.36 volts b. 4.8…

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Q: Q(C) capacitor P kapasitor P 0.63 Q. 0.37 Q. 2 uF 3 uF 37 80 + (jus) 5 uF (a) (b) FIGURE 2 RAJAH 2…

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Q: 1.0 μF, 2.0 μF, and 3.0 μF capacitors are connected in parallel across a 24-V battery. How much…

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Q: In the figure shown below, C, = 6.0 µF, C2 = 4.0 µF, C3 = 12.0 µF and the voltage of the battery is…

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Q: If 5.0 x 1021 electrons pass through a 71.2 Q resistor in 10 min, what is the potential difference…

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Q: C1 V + C3 C4 C2 %3D C1 3.0 μF; C, 6.0 µF; C3 = 4.0 µF; C4 = 2.0 µF; V = 16 volts a. 16 µC b. 20 µC…

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Q: What is the potential difference across a parallel-plate capacitor whose plates are separated by a…

A: Given,      d = 4 mm = 4×10-3 m      σ = 5 pC/m2 = 5×10-12 C/m2 The capacitance of parallel plate…

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.