Question

Calculate the terminal potential difference across a 20W resistor connected to a battery of e.m.f 15V and internal resistance 5W. A. 60.0V B. 15.0V C. 12.0V D. 6.3V

Answer 1

Answer:

d) b will decay at a faster rate than a.a sample originally contained 1020 radioactive atoms, whichemit a-particles. the ratio of a particles emitted in the thirdyear to that emitted during the second year is 0.3. howmany a-particles were emitted in the first year? (a) 3 x 1018(b) 3 x 1019(c) 5 x 1018(d) 7× 1019i with decay constant 1.5/s is being...

pls mark as brainlist