Question

If the force experienced by a positively charged balloon is 2.7 newtons and the electric field strength is 7.8 × 105 newtons/coulomb, what is the magnitude of the charge on the balloon

Answer 1

Since, it is given that the force experienced by a positively charged balloon is 2.7 newtons and the electric field strength is $7.8 \times 10^5$newtons/coulomb.

We have to determine the magnitude of the charge on the balloon.

The relationship between electric field strength, magnitude and force is given by the formula $F = qE$ where 'F' is the force, 'E' is the electric field intensity and 'q' is the magnitude of the charge.

Since, $F = qE$

$2.7 = q \times 7.8 \times 10^5$

$q = \frac{2.7}{7.8 \times 10^5}$

q = $0.35 \times 10^{-5}$

Therefore, the magnitude of the charge on the balloon is $0.35 \times 10^{-5}$ Coulomb.