1. a battery can be modeled as a source of emf in series with both a resistance of 10 ω and an inductive reactance of 5 ω. for a maximum power delivered to the load, the load should have a resistance of rl = 10 ω, an inductive reactance of zero, and a capacitive reactance of 5 ω. with this load, is the circuit in resonance?
a)yes
b)no
c)it depends on the voltage provided by the battery.
2. with this load, what fraction of the average power put out by the source of emf is delivered to the load?
a)0
b)0.2
c)0.5
d)0.7

Which of the following is the main energy source for the sun? a. fission of hydrogen b. fusion of hydrogen c. fusion of helium d. fission of iron

Abox that has self-contained cable clamps holds two light switches. a two-wire no. 12 cable with ground feeds the box, and a pair of two-wire no. 12 cables (four conductors) with ground wires leaves the box to feed the light fixtures. the second switch is fed by a no. 12 jumper wire from the first switch. which one of the following box combinations would furnish the minimum allowable volume? a. two 3-inch × 2-inch × 21⁄2-inch gangable device boxes b. two 3-inch × 2-inch × 11⁄2-inch gangable device boxes c. two 3-inch × 2-inch × 23⁄4-inch gangable device boxes d. two 3-inch × 2-inch × 21⁄4-inch gangable device boxes

Answer fast for brainliest! what type of image is formed by a refracting telescope? an enlarged, upside-down virtual image a reduced-size, right-side-up virtual image a reduced-size, right-side-up real image an enlarged, upside-down real image