620 C passes through a flashlight in 0.450 h. What is the average current?
620 C passes through a flashlight in 0.450 h. What is the average current?
What current (in A) flows through the bulb of a 3.20 V flashlight when its hot resistance is 3.75 Ω?
A flashlight emits completely unpolarized directed beam of light of unknown intensity. The light passes through a vertical polarizing filter followed by a filter oriented at 30° to the vertical. The intensity of the light observed after the second filter is 100W/m2. What was the intensity of the original light source? Enter answer here W/m2
4. A flashlight operates with a 6.0-V battery, using a current of 1.75 A. How much charge passes through the bulb in 15.0 min? (2 marks)
A flashlight bulb carries a current of 0.17A for 78s . How much charge flows through the bulb in this time? How many electrons?
a. b. C. A 250-ohm resistor, a 0.450 H inductor, and a 6.45 uF capacitor are connected in series across an emf with a 36.0 volt amplitude and an angular frequency of 260 rad/s. What is the impedance? What is the current amplitude? What is the phase angle between the voltage and current? Does the voltage lag or lead? What are the voltage amplitudes across the resistor, inductor and capacitor individually? What is the power? f. What is the resonant...
A defibrillator passes a brief burst of current through the heart to restore normal beating. In one such defibrillator, a 59.5 µF capacitor is charged to 5.6 kV. Paddles are used to make an electrical connection to the patient's chest. A pulse of current lasting 1.0 ms partially discharges the capacitor through the patient. The electrical resistance of the patient (from paddle to paddle) is 226 Ω. (a) What is the initial energy stored in the capacitor? J (b) What...
9. In the electrolysis of molten MgCh2. A current of 60.0 A passes through molten MgCl; for a period 2 h. Calculate the mass in grams of Mg (AM: 24.3) produced. (F 96485 C/mol e) [10 pt]
5. 14] In 20 sec, 0.500 C of charge passes through a 9.0-V battery. (a) How much energy does this represent? (b) What is the average current?
An inductor a. passes current whether it is time varying or direct. b. passes direct current and opposes time varying current. c. passes time varying current and stops direct current. d. expels magnetic field through it. e. rotates if current is passed through it. f. allows only magnetic field to go through it and stops any current through the coil.
A steady electric current flows through a wire. If 8.0 C of charge passes a particular spot in the wire in a time period of 2.0 s, what is the current in the wire? O 4.0 A O 8.0 A O 16 A O 0.25 A If the current is a constant 5.0 A, how long will it take for 14.0 C of charge to move past a particular spot in the wire? O 70 s O 14,0 s O...