5. How much electrical energy is transferred to thermal energy in 2.50 hrs by an electrical resistance of 500 ohms when the potential applied across it is 80.0V?
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- Suppose that the potential difference across the membrane of a biological cell is 57 mV, and that the resistance across the membrane is 7.8 × 109 Ω. The difference in potential drives a current of Na+ ions across the membrane of the cell. How many ions flow in 0.6s? (hint: calculate the electric current, then the total charge, then the number of ions.)2. A 1.5 V battery produces 46.3 mA when it is across a 30.0 Ω load. The potential difference across the battery's terminals is_________ V. Normal format with 3 SF. A 12V battery produces 0.22 A current when it is across a 50.0 Ω load. The battery's internal resistance is ________ . Normal format with 3 SF.A charge of 7.00 C passes through a pocket calculator's solar cells in 2.00 h. What is the power output (in W), given the calculator's voltage output is 4.00 V?