Y̎Aԇ}
Y̎Ĉr(sh)gÿ4·֮ǰYJBYSС鿼ĽY̎Aԇ}҅W(xu)A俼ɹ
1. һԴ늄(dng)ݞ225V2.5Ω·ɔK“220V40W”늟M Ҫʹ늟l(f)tͬr(sh)ʹ( B )K
A5; B11; C25; D40
2. ҽ늵ֵЧֵ( B )
A ; B ; C ; D
3. ڼ늸н·늉ǰ( D )90°
A; B늸; C늉; D
4. ͨČwڴň(chng)ܵķ( C )_
At;Bֶt;Cֶt;Dֶ
5. (xin)Ȧcň(chng)l(f)\(dng)r(sh)ڌ(xin)Юa(chn)Б늄(dng)늄(dng)ݵķ( C )(li)_
Aֶt;Bֶt;Ct;Dͬr(sh)
6. Q(chng)ԴBӕr(sh)(xin)늉( A )
A늉;B2늉;C3늉;D 늉
7. Q(chng)ԴB(xin)늉( B )
A늉;B 늉;C~~;D2늉
8. ֱ·҂Դһ˽Դ( B )
AO; BؓO; C늉; D늄
9. 늉˲r(sh)ֵ_ʽքeu=220sin(ωt-10°)i=5sin(ωt-40°)ô( B )
A늉40°;B늉30°;
C늉ǰ50°;D늉ǰ30°
10. ɿعbǿ׃( C )(li)׃ݔ늉
AԴ늉;Bݔֱ;Cɿع|l(f)ƽ;DؓdС
11Dʾ·US=10V_(ki)P(gun)S]Ϻ··](mi)аl(f)B(ti)^(gu)ԭ( )
A:ֱ·ֱ·푑Sr(sh)g׃
B:·](mi)аl(f)Q·
C:_(ki)P(gun)S]ǰăɂ(g)B(ti)늸US/R1
D:·ֻ늸c](mi)Ԫ
:C
12ڷB(ti)ҽ·f(shu)_( )
A:ԪRLC(lin)r(sh)˿ڿ늉Чֵһÿ(g)Ԫ늉Чֵ
B:ԪRLC(lin)r(sh)LC֧·(sh)H
C:ڸ·Դlfr(sh)pС
D:RLC(lin)·Cr(sh)·_Сֵ
:B
:(lin)C
13һ@MԴ׃ԭ߅@MU1=220VN1=880߅Ѓɂ(g)@MքeݔU21=36VU22=12VքeP21=120WP22=100Wؓdr(sh)׃pԭ@Mе ( )
A:3A
B:1A
C:2.1A
D:0.28A
:B
15ҽ·DʾQ(chng)ؓdӳ֪Դ늉UL=220Vÿ迹Z=15+j16.1ΩAB·r(sh)x( )
A:10A
B:5A
C:17.3A
D:8.6A
:A
:(xin)P(gun)ϵ
16һ_늄(dng)C\c(din)ӵصĵ͉ϵyT⚤|¹¹ʵԭ( )
A:ݔ늙CăԴ(xin)·C
B:ݔ늙CijԴ(xin)늙Cδȡ^(gu)do
C:늙Cij^p늙Cδȡӵرo
D:늙Cij^p늙Cȡ㱣o
:D
17Q(chng)ؓdӳBʞ2.4kw0.6֪Դ(xin)늉UL=380Vͨ^(gu)ؓd( )
A:6.08A
B:3.51A
C:10.53A
D:8.24A
:B
18往(xin)늙CQ(chng)ؓd͆ؓd(li)v_İȫoʩ( )
A:ؓdoӵؓdoPE(xin)
B:ؓdoؓdoPE(xin)
C:ؓd͆ؓdo
D:ؓd͆ؓdoPE(xin)
:D
:往(xin)늙Cо(xin)ǽӵصʹ@NԴκO䲻SoӵA;ڴچؓdr·DzQ(chng)@r(sh)еO䑪oPE(xin)ֻxD_
19^һ|ֻҪ|(xin)Ȧͨ|̈́(dng)ʹ( )
A:_(ki)|^ͳ]|^]늄(dng)C\D
B:_(ki)|^]o_(ki)|^_(ki)늄(dng)C\D
C:_(ki)|^o_(ki)|^]늄(dng)C\D
D:_(ki)|^o_(ki)|^_(ki)늄(dng)CͣD
:C
20늄(dng)C^늽|·ж·o^(gu)doǷoг̱oҪͬr(sh)·Ϳ·еıo( )
A:^г_(ki)P(gun)
B:۔г_(ki)P(gun)
C:|г_(ki)P(gun)
D:|͟^
:C
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