Two point particles of charge Q₁ = 47 μC and Q₂ = 82 μC are found to have a potential energy of 45 J. What is the distance between the charges? m
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- (a) What is the final speed of an electron accelerated from rest through a voltage of 25.0 MV by a negatively charged Van de Graff terminal? (b) What is unreasonable about this result? (c) Which assumptions are responsible?(a) Will the electric field strength between two parallel conducting plates exceed the breakdown strength of dry air, which is 3.00106 V/m, if the plates are separated by 2.00 mm and a potential difference of 5.010V is applied? (b) How close together can the plates be with this applied voltage?(a) What voltage will accelerate electrons to a speed of 6.00107 m/s? (b) Find the radius of curvature of the path of a proton accelerated through this potential in a 0.500-T field and compare this with tire radius of curvature of an electron accelerated through the same potential.
- (a) Will the electric field strength between two parallel conducting plates exceed the breakdown strength for air ( 3.0 106 V/m) if the plates are separated by 2.00 mm and a potential difference of 5.0 103 V is applied? (b) How close together can the plates be with this applied voltage?The temperature near the center of the Sun is thought to be 15 million degrees Celsius ( 1.5107oC ) (or kelvin). Through what voltage must a singly charged ion be accelerated to have the same energy as the average kinetic energy of ions at this temperature?(a) What is the average power output of a heart defibrillator that dissipates 400 J of energy in 10.0 ms? (b) Considering the high-power output, why doesn’t the defibrillator produce serious bums?
- It is believed that a large electric fish known as Torpedo occidentalis uses electricity to shock its victims. A typical fish can deliver a potential difference of O.130 kV for a duration of 1.30 ms. This pulse delivers charge at a rate of 14.0 C/s. What is the total amount of work done during one pulse?A conducting sphere has a radius of 8.4 cm. A wire carries an electrical current of 1.3 μA into the sphere. How long will it take for the sphere to increase in potential to 1000V?Two parallel plates with an area of 3.0 cm2 are separated by a 2.5 mm thick dielectric with a constant of 4.70. If the potential difference between the plates is 120 V and the conduction current ic is 6.00 mA a) what is the charge (q) on each plate?
- cmid%3D91618&page=4 If 5.0 x 10 electrons pass through a 63.2 O resistor in 10 min, what is the potential difference across the resistor? use the charge of the electron to be -1.6 × 10-19 C. Select one: OA. 12.64 OB. 21.06 OC 505.60 OD.84.26 OE 5056.00 Next pageTwo capacitors of capacitance C₁ = 500 nF and C₂ = 1.5 µF are connected in parallel across a cell with emf V... What is the value of the total capacitance connected across the cell?Two capacitors of capacitance C₁ = 2C and C₂ = 3C are connected in parallel across a cell with emf V. What is the value of the charge on capacitor C₁?
