Thermal energy is to be generated in a 0.133 O resistor at the rate of 10.5 W by connecting the resistor to a battery whose emf is 1.5 V. (a) What potential difference must exist across the resistor? (b) What must be the internal resistance of the battery? (a) Number i 8.85 Units (b) Number i 0.11 Units

A 6.0 Q resistor and a 3.0 Q resistor are connected in parallel to a 1.5 V battery of negligible internal resistance. What is the current in the 3.0 Q resistor? Select one: 0.75 A 0.17 A 0.25 A 2.00 A 0.50 A

A 65.9-Q resistor is connected in parallel with a 168.1-0 resistor. This parallel group is connected in series with a 30.0-0 resistor. The total combination is connected across a 16.2-V battery. Find (a) the current and (b) the power dissipated in the 168.1-Q resistor. R₁ (a) Number Mi (b) Number i Units Units R3 ww V < R₂

An RC series circuit has a time constant of 40.0ms. When the switch is closed to charge the 50.0 µF capacitor, the initial current is 65.0 mA. What is the potential difference across the capacitor at a time 20.0 ms after closing the switch? Select one O a 12.9 b. 25.0 V O c 14.5 V O d 11.5 V e 20.5 V

-/1 Points] DETAILS SERCP10 18.P.035. A charged capacitor is connected to a resistor and a switch as in the figure below. The circuit has a time constant of 2.50 s. Soon after the switch is closed, the charge on the capacitor is 81.0% of its initial charge. +Q www R (a) Find the time interval required for the capacitor to reach this charge. S (b) If R= 200 kn, what is the value of C? UF

A 6.00 nF capacitor that is initially uncharged is connected in series with a 900 2 resistor and an emf source with & = 360V and negligible internal resistance. A long time after the circuit is completed (enough time that capacitor is fully charged), what is the current across the resistor? O 0.20 A O 0.067 A 1.33 A OA 0.24 A O 0.40 A 0.16 A

In the figure circuit section AB absorbs energy at a rate of 55 W when current i 0.90 A through it is in the indicated direction. Resistance R = 2.0 Q. (a) What is the potential difference between A and B? Emf device X lacks internal resistance. (b) What is its emf? R (a) Number i Units (b) Number i Units