From which experiments was it discovered that atoms have an internal structure? When?

Which viroid was first discovered?

Which discovery did point out that an atom has internal structure ?

Sketch and label internal structure of human heart.

In which animal the Rh factor was first discovered?

Describe the histological( internal) structure of thyroid gland.

Explain internal structure of galvanometer

The donor atoms have energy level

Which petide hormone was discovered by Sir Edward sharpey schafer?

The atom having the smallest size.

A voltmeter has a resistance 30 Omega . What will be its reading, when it is connected across a cell of emf 2 V having internal resistance 10 Omega ?