An electroscope obtains a charge of -1.44 x 10-16 C. How many excess electrons does this represent? (e = -1.60 x 10-19 C)?
回答 (1)
2015-08-28 8:50 pm
Number of excess electrons
= (‒1.44 × 10⁻¹⁶) / (‒1.60 × 10⁻¹⁹)
= 900
= (‒1.44 × 10⁻¹⁶) / (‒1.60 × 10⁻¹⁹)
= 900
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