A Cell Has a Voltage (E) of 2 $$I = E / R + r$$

question 34

Short Answer

A cell has a voltage (E) of 2.1 volts, an internal resistance (r) of 0.9 ohms, and is connected to an electromagnet with a resistance (R) of 0.3 ohm. What current, in amps, will the electromagnet receive? Carry the answer to two decimal places. $$I = E / R + r$$

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Diagram

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Excise Tax

A tax levied on specific goods, services, or transactions, often included in the price of the product.

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