Question

[Như Phạm]

2 nguồn {\(\zeta\)=3V

r=0,5 \(\Omega\)

R1=3\(\Omega\)

Đèn 6V-6W

R2=5\(\Omega\)

a)\(\zeta\)_b; r_b

b)RĐ

c) R_N

d) I, I₁, I₂,I_đ

e)H=

g) Q1=?t=30'

h) P2,P_đ

k) A_ng=? t=1h

P_ng

l) A=?

t= 20'