Photograph 7.18 Uses of magnets and electromagnets in daily life direction of the poles.
sup
Formative Practice
7.3
P
Dry cell
elechi Copper
wire
1. What is a magnetic field?
Iron
2. Figure 1 shows an iron nail coiled with insulated copper wire nail
connected to a dry cell of 1.5 V.
(a) What happens when the switch is turned on the
(b) Mark the direction of the current flow in the copper wire
around the iron nail.
antidekure NS
(c) State the poles of the magnetic field at P and Q.
(d) What happens to the strength of the magnetic field if another
dry cell of 1.5 V is added?

0.11 m/s and 0.28 m/s should be correct

hi there!

out of the two, (b) precision would be more reasonable.   however, both a and b could be pretty reasonable.

-awesomerepublic   : )

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide

answer

procedural programming, object-oriented programming

explanation

procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures   within its development period of time. it contains a systematic order of statements, functions and commands to complete a computational task or program. it is centered on creating procedures. while object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. it has four principles which are inheritance, polymorphism, abstraction and encapsulation