When a resistor of 10Ω is connected in series with a battery, the current is 0.8A. When a resistor of 20Ω is connected the current becomes 0.5A. Calculate the emf and the internal resistance of the battery.
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chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between oppositely charged ions as in ionic bonds or through the sharing of electrons as in covalent bonds.
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The solution is in the attachment.
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