Two resistors, each of 2ω, are in parallel with one another. if a two more 2ω resistors are added in parallel, how does the resistivity of the circuit change?

resistance will double
resistance will quadruple
resistance will reduce by ½
resistance will reduce by ¼

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.

Petroleum contains energy. a. light b. kinetic c. chemical d. mechanical

Ahuge (essentially infinite) horizontal nonconducting sheet 10.0 cm thick has charge uniformly spread over both faces. the upper face carries +95.0 nc/m2 while the lower face carries -25.0 nc/ m2. what is the magnitude of the electric field at a point within the sheet 2.00 cm below the upper face? (ε0 = 8.85 × 10-12 c2/n · m2)