the rheostat is adjusted so that its resistance increases. how will this adjustments influence the voltmeter reading at the position of 20 ohms and 30 ohms​

the answer is neither ball has a charge.

because if they were both positively charged, they will repel each other.

if they were positively and negatively charged, they will seek.

it breaks and dirupture other materials and other sencews from the bottom

heats surface water up

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.