一道有关电学的英文物理题In the circuit in the figure（如图）a 20Ω resistor is inside 105g of pure water that is surrounded by insulating styrofoam.If the water is initially at 12.0℃, how long will it take for its temperature to ris

来源：学生作业帮助网 编辑：六六作业网 时间：2024/11/17 06:53:12
一道有关电学的英文物理题Inthecircuitinthefigure（如图）a20Ωresistorisinside105gofpurewaterthatissurroundedbyinsulati

一道有关电学的英文物理题In the circuit in the figure（如图）a 20Ω resistor is inside 105g of pure water that is surrounded by insulating styrofoam.If the water is initially at 12.0℃, how long will it take for its temperature to ris
一道有关电学的英文物理题
In the circuit in the figure（如图）a 20Ω resistor is inside 105g of pure water that is surrounded by insulating styrofoam.If the water is initially at 12.0℃, how long will it take for its temperature to rise to 59.0℃?

一道有关电学的英文物理题In the circuit in the figure（如图）a 20Ω resistor is inside 105g of pure water that is surrounded by insulating styrofoam.If the water is initially at 12.0℃, how long will it take for its temperature to ris
干路25Ω,3个支路电阻分别为20,20,10
3个支路并联电阻的总阻值为1/(1/20+1/20+1/10)=5Ω
则整个电路的电阻可以等效为30Ω
I=U/R=1A
水的比热容为4.2J/(g*K)
Q=c*m*Δt=20727J
Q=I²Rt
其中R是指加热电阻,即20Ω
t=1036.35s

一道电学的物理题 一道有关电学的英文物理题In the circuit in the figure（如图）a 20Ω resistor is inside 105g of pure water that is surrounded by insulating styrofoam.If the water is initially at 12.0℃, how long will it take for its temperature to ris 初二的一道电学的物理题 请教一道电学方面的物理题 一道有关电学的题目 一道有关密度的物理题 一道有关安培力的物理题, 有关欧姆定律的一道物理题 一道有关功的物理题, 一道初三关于电学的物理题,请高手看看,快速, 关于电学的一道物理题B C选项是不是并联?因为有节点?开关闭合会不会短路? 一道英文版的物理题,rockets are launched from an airplane in the forward direction of motion.the kinetic energy of the airplane will bea.unchangedb.increasedc.decreased 一道初中电学动态电路物理题 一道初中电学动态电路物理题4 一道初中电学动态电路物理题5 一道初中电学动态电路物理题3 求一道有关运动的物理题 一道有关振动波的物理题