A piece of aluminum and a piece of cotton are rubbed together. The piece of cotton is brought very close to the top of a metal wand electroscope and the electroscope is charged permanently by induction. What charge does the electroscope  have? Explain your answer.

Q: A cube of marble having each side of length 5 m is kept in an electrostatic field of intensity 300…

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Q: A student reaches to open a door and gets a small electric shock. She knows that the shock is caused…

A: Static electricity is defined as the electricity which is created when there is an imbalance of…

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Q: A small charged ball with a weight of 6.00 N hangs from a string. When the ball is placed in a…

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A: The potential energy is zero at the infinity. Consider the two like charges are released, Because of…

Q: Sun Anwe DETAILS OSCOLPHYS2016 19.1.P.009. MY NOTES A battery-operated car utilizes a 12.0 V system.…

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Q: The charge carried by an electron is −1.60×10−19 C. Suppose that an electron moves through a voltage…

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Q: 68 + + ? Poper 十九

A: As there is no power supply to the plate, charge on the plate remains the same. As we insert the…

Q: 33 - How much charge is on each plate of a 4 microF capacitor when it is connected to a 1.5 V…

A: Given, capacitance = 4microF Potential difference = 1.5V Charge on each plate on capacitor =…

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A: Fined dirt contains iron particles in it which are highly attracted by a magnet. If we put a pinch…

Q: 8. A lightning bolt from a cloud hits a tree after travelling 200m to the ground through an electric…

A: Electric field E=2×106 V/m Distance d=200 m let the potential difference between the cloud and the…

Q: It takes a proton 50 seconds to cross a potential difference of 90000 V. What is the average power…

A: The average power is calculated as, P = (qV)/t Here, q is charge on a proton, V is potential…

Q: In the circuit shown in the figure, the capacitors are initially charged by a 19 V battery. The…

A: Given, Voltage, V=19V Capacitor,C1=6μFC2=5μF Resistance, R=619Ω The capacitors are in parallel, So,…

Q: The figure shows two parallel conductor plates coated on conductive paper divided into equal squares…

A: the solution to part a

Q: Which of the following are the electric potential and charge units?

A: electric potential V =W/q

Q: Stephanie's hair stands up on end when she takes off her hat. The reason her hair stands up is…

A: Given statement :"Stephanie's hair stands up on end when she takes off her hat "

Q: The positive charge q of 15 is uniformly distributed on the circle of radius a as seen in the…

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Q: With a partially-charged capacitor, will it take longer or shorter for a light bulb to stay lit?…

A: First of all light bulb is a resistor as current flows through its filament then due to the heating…

Q: Which statement is true for an electron moving in opposite direction of an electric field? 1. Olts…

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Q: What is true about the charged particles moving through an electric circuit? O They can move through…

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Q: the same voltage, assuming non-rel egen ion to be 1.67 × 10-27 kg.

A: Given:-  The voltage of the electron and the hydrogen ion is the same  the mass of the hydrogen ion…

Q: Which statement is true for an electron moving in the direction of an electric field? 1 Ols…

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Q: 10. How long, after the switch is closed, will it te charge? R= 1.0 kQ %3D ɛ = 24 V C= 50 uf %3D

A: One point here I want to make is that How to decide whether the circuit is charging or discharging?…

Q: How much work is needed to carry an electron from the positive terminal to the negative terminal of…

A: The voltage,The electron charge,

Q: If R 2 is OPEN, what are the voltages with respect to ground at points A, B, and C.

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Q: The figure shows two parallel conductor plates coated on conductive paper divided into equal squares…

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Q: Problem 6: A clock battery wears out after moving 12500 C of charge through the clock at a rate of…

A: Given data The amount of charge is Q = 12500 C The magnitude of the current is I = 0.45 mA = 0.45 x…

Q: 5.0 x 10 electrons pass through a 16.7 Q resistor in 10 min, what is the potential difference across…

A: Given, No. of e-, n=5.0×1021 Time, t=10 min=10×60 s Resistor have resistance, R=16.7 Ω Charge of e-,…

Q: You have two capacitors, one with capacitance 17.5 × 10*F and the other of unknown capacitance. You…

A: The two capacitors are connected in seriesC1 = 17.5 * 10-6 F C2 = C Applied voltage = 357 V charge…

Q: (22%) Problem 6: volts Two parallel conducting plates are separated by 10.2 cm, and one of them is…

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Q: Two large parallel plates are separated by a 0.015-m gap. The plates are connected to the terminals…

A: a) The electric field strength between the parallel plates can be calculated using the formula: E =…

Q: Which of the following statements is TRUE if a positive test charge (+q) is placed between B and C?…

A: When a charge is placed in an electric field it experiences some force on it. This moves the charge.

Q: There is an electric field near the Earth's surface whose magnitude is about 130 V/m. How much…

A: Given Data: Electric field is E =130 V/m The permittivity of free space is ε0=8.85×10-12 C2/N m2.…

Q: Is it possible to associate electrical potential energy with an isolated charged particle? Explain.

A: Let the charge = q Let the potential at the position of charge = V

Q: A/An is a unit equal to one joule per coulomb. volt O capacitor O capacitance electric field line…

A: To identify : one joule per coulomb is a unit for  ?

Q: When a charged particle is moved along an electric field Iine, Select one: a. the electrical…

A: When a charge particle is moved along an electric field line the electric potential energy undergoes…

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A: Average current , I =31.00

Q: Flow cytometry, illustrated in Figure P20.750, is a technique used to sort cells by type. The cells…

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Q: A clock battery wears out after moving 8500 C of charge through the clock at a rate of 0.35 mA. a)…

A: Given that value of charge is 8500 coulomb and also given the value of current is .35*10-3 amp. Then…