7:47 PM Thu Apr 13 42% webassign.net 1. [-/8 Points] DETAILS OSUNIPHYS1 26.1.P.024. MY NOTES A conductor carries a current that is decreasing exponentially with time. The current is modeled as I = Ive /, where I = 7.00 A is the current at time t = 0.00 s and 7 = 0.50 s is the time constant. How much charge flows through the conductor (in C) between t = 0.00 s and t = 67? (Enter the magnitude.) 2. [-/4 Points] DETAILS OSUNIPHYS1 26.1.P.025. MY NOTES The quantity of charge through a conductor is modeled as Q = (2.00 mc/s*)t* - (6.00 mC/s)t + 9.00 mc. What is the current (in A) at time t = 2.00 s? 3. [-/6 Points] DETAILS OSUNIPHYS1 26.1.WA.001. MY NOTES 600 C passes through a flashlight in 0.580 h. What is the average current? MA 4. [-/6 Points] DETAILS OSUNIPHYS1 26.2.P.033. MY NOTES The current supplied to an air conditioner unit is 3.50 amps. The air conditioner is wired using a 10-gauge (diameter 2.588 mm) wire. The charge density is n = 8.48 x 102 electrons/m. Find the following magnitudes. (a) current density (in A/m2) A /m (b) the drift velocity (in m/s) m/s 5. [-/2 Points] DETAILS OSUNIPHYS1 26.4.WA.019. MY NOTES What current flows through the bulb of a 2.75-V flashlight when its hot resistance is 3.40 0? A7147 PM Thu Apr13 u.- iii webassignnet O The energy dissipated by the resistor is converted to electric potential energy. 0 The energy dissipated by the resistor is converted to heat. O The energy dissipated by the resistor is converted to gravitational potential energy. 0 The energy dissipated by the resistor is converted to elastic potential energy. 8. [l4 Points] DETAILS TIPLERG 24.P.009.SOLN. MY NOTES A dielectric is inserted between the plates of a parallel-plate capacitor, completely filling the region between the plates. Air initially filled the region between the two plates. The capacitor was connected to a battery during the entire process. True or false? (a) The capacitance value of the capacitor increases as the dielectric is inserted between the plates. (c) The electric field between the plates does not change as the dielectric is inserted between the plates. 0 True 0 False (d) The energy storage of the capacitor decreases as the dielectric is inserted between the plates. 0 True 0 False 9. [I1 Points] DETAILS TIPLER6 25.P.011. MY NOTES If the current in a resistor is I, the power delivered to the resistor is P. If the current in the resistor is increased to 31, what is the power then delivered to the resistor? (Assume the resistance of the resistor does not change.) 0 P 0 PB O 9P 0 3P 0 P/9 Submit Assignment Save Assignment Progress 7147 PM Thu Apr13 u.- t'l webassignnet 5. [l2 Points] DETAILS OSUNIPHYS1 26.4.WA.019. MY NOTES What current flows through the bulb of a 2.75V flashlight when its hot resistance is 3.40 0.? SA 6. [l4 Points] DETAILS OSUNIPHYS1 26.4.WA.023. MY NOTES What current flows through a 2.45 cm diameter rod of pure silicon that is 17.5 cm long, when 1000 V is applied to it? (Such a rod may be used to make nuclear particle detectors, for example.) The resistivity of pure silicon is 2.30 X 103 .0. - m. SA 7. [l4 Points] DETAILS OSUNIPHYS1 26.5.P.055. MY NOTES A 22.60 V battery is used to supply current to a 24 k0 resistor. Assume the voltage drop across any wires used for connections is negligible. (a) What is the current (in mA) through the resistor? mA D (b) What is the power dissipated by the resistor (in mW)? mW U (c) What is the power input from the battery (in mW), assuming all the electrical power is dissipated by the resistor? mW B (d) What happens to the energy dissipated by the resistor? O The energy dissipated by the resistor is converted to electric potential energy. 0 The energy dissipated by the resistor is converted to heat. 0 The energy dissipated by the resistor is converted to gravitational potential energy. 0 The energy dissipated by the resistor is converted to elastic potential energy. 8. [l4 Points] DETAILS TIPLER6 24.P.009.SOLN. MY NOTES A dielectric is inserted between the plates of a parallelplate capacitor, completely filling the region between the plates. Air initially filled the region between the two plates. The capacitor was connected to a battery during the entire process. True or false? (a) The capacitance value of the capacitor increases as the dielectric is inserted between the plates. (b) The charge on the cathed between the plates. n -r._