Question

An electric circuit containing a cell and a torch bulb is completed by using the following objects turn by turn: Match stick, Iron nail, Eraser, Glass bangle, Key Which of the above will make the bulb glow and which will not? Give reasons for your answer.​

Answer 1

Answer:

Therefore, the volume of the cylinder= 128480 cm³and capacity= 128.48 liter

Step-by-step explanation:

The volume of the cylinder=\pi h(R^2-r^2)πh(R2−r2)

Here R= 74 cm and r = (74-2)cm=72 cm and h = 1.4m =140 cm

Therefore the volume of the cylinder is

=\pi \times 140 (74^2-72^2)=π×140(742−722) cm³

=128480 cm³

=128.48 liter

Therefore, the volume of the cylinder= 128480 cm³

and capacity= 128.48 liter

Answer 2

eraser,glass, matchstick